**Answer:**

On real life example of a scenario that takes advantage of the inverse relationship between force and time when impulse is constant is when making a serve with a lawn tennis racket

How It is an example of impulse is that when a serve is made by moving the bat slowly, the lawn tennis player uses less force and the ball is in contact with the string for longer a period

When however, the lawn tennis player moves the racket faster, with the strings of the racket highly tensioned he uses more force and the ball also spends less time on the racket to produce the same momentum

**Explanation:**

The impulse of a force, ΔP is given by the following formula;

ΔP = F × Δt

Where ΔP is constant, we have;

F ∝ 1/Δt

Therefore, for the same impulse, when the force is increased, the time of contact is decreases and vice versa.

How would the forces from a header with such a light soccer ball cause a concussion.

A **concussion **can be caused by the forces from a **header **with a light soccer ball if the ball is struck with a **high level of force**.

When a soccer ball is struck with a high level of force, it can create a shock wave that **travels **through the ball and into the head of the player who struck the ball. This shock wave can cause the brain to rapidly move back and forth inside the **skull**, resulting in **trauma **to the **brain** tissue.

The likelihood of a **concussion **occurring from a header with a light soccer ball depends on a variety of factors, including the speed and angle at which the ball is struck, the **size **and **mass **of the ball, and the position of the player's head when the ball is struck.

Players who are **struck **in the head by a **soccer ball**, particularly at high speeds or with high levels of force, are at risk of sustaining a concussion or other head injury. It is important for players to be aware of the potential for **concussion **and to take precautions to protect themselves from injury.

Learn more about **Concussion **here;

https://brainly.com/question/1445399

#SPJ4

Why is sliding friction less than static friction and why is rolling friction less than sliding friction?

The area on contact between the surfaces and the type of the bodies both affect how much friction there . Rolling has a smaller area of contact than sliding does, and rolling friction is lower than **sliding friction.**

**For kids, what does sliding friction mean?**

When things slide over a surface, there is friction called **sliding friction. Static friction **is more powerful than sliding friction. Because of this, it's simpler to move a furniture item once it's started moving that it is to stop it from moving.

**What is the name for a sliding force?**

There may still be friction between the surfaces even when they are **moving past **one another; this sliding friction is known as a **kinetic friction coefficient.**

To know more about **sliding friction **visit :

https://brainly.com/question/11808898

#SPJ4

A car starts at rest and travels 100 m in 5 seconds. What is the car's acceleration?

**Answer:**

[tex]4 m/s^{2}[/tex]

**Explanation:**

You can use the formula a = (v2 - v1)/t, where a is the acceleration, v1 is the initial velocity, v2 is the final velocity, and t is the time interval.

In this case, v1 is 0 m/s (since the car starts at rest) and v2 is the final velocity of the car after it travels 100 m in 5 seconds. You can use the formula v = d/t to find the final velocity, where v is the velocity, d is the distance traveled, and t is the time taken. Plugging in the given values, you get:

v = d/t

= 100 m / 5 s

= 20 m/s

Now you can plug in the values for a, v1, v2, and t into the formula to find the acceleration:

a = (v2 - v1)/t

= (20 m/s - 0 m/s)/5 s

= [tex]4 m/s^{2}[/tex]

You are standing over a 30 m cliff with a water fall. What is the potential energy of 300 kg of water as it starts the decent from the top of the waterfall? Remember, where g = 9.81 m/s2

**Answer:**

Therefore, the potential energy of 300 kg of water as it starts the descent from the top of the 30 m waterfall is 294.3 Joules.

**Explanation:**

In this case, you are given that the mass of the water is 300 kg, and the height of the waterfall is 30 m. The acceleration due to gravity is given as 9.81 m/s2. Plugging these values into the formula, you can find the potential energy of the water as it starts the descent from the top of the waterfall:

PE = 300 kg * 9.81 m/s2 * 30 m

= 294.3 kg * m^2/s^2

= 294.3 Joules

The **potential energy** of 300 kg of water as it starts the descent from the top of the 30 m waterfall is** 294.3 Joules.**

**Potential energy** is a form of stored energy that is dependent on the relationship between different system components. When a spring is compressed or stretched, its** potential energy **increases. If a steel ball is raised above the ground as opposed to falling to the ground, it has more **potential energy.**

Given parameters:

**Mass **of the water: m = 300 kg.

**Acceleration **due to gravity: g = 9.81 m/s²

Height: h = 30 m.

Hence, **potential energy** of the water at the top of the waterfall =

mass × acceleration due to gravity × height

= 300 kg × 9.81 m/s² ×30 m

= 294.3 kg-m²/s²

=** 294.3 Joules**

Learn more about **potential energy** here:

https://brainly.com/question/24284560

#SPJ2

During a live action show, an acrobatic performer will fall from heights onto a large foam mat. While these falls would normally injure a person, the performer is unharmed. From the perspective of momentum, what is the best explanation for this?.

The following relationship between **impulse** and **momentum** enables for the proper outcome to be determined: The average force Impulse falls as impact time increases.

The impulse, which is connected to the **fluctuation** in the quantity of movement, is calculated by **multiplying** the applied force by the time interval. I=F dt =p =m v f - m v0

When I is the impulse, F is the applied force, t is the time, p is the momentum, m is the **mass**, and v is the body's **velocity**, all of which are vectors. When the body stops, its speed is zero, and the height of the body affects how quickly it **strikes** the foam bed. A certain amount of force must be applied in order for someone to be hurt.

To learn more about **impulse** please click on below link

https://brainly.com/question/16980676

#SPJ4

Which of the following statements describes the relation between what we observe and the predictions of the nebular model of the formation of the Solar System?

a. The model predicts icy planets nearest to the Sun and we observe icy planets there.

b. The model predicts icy planets throughout the Solar System and we observe icy planets only far from the Sun.

c. The model predicts icy planets throughout the Solar System and we observe icy planets everywhere.

d. The model predicts icy planets throughout the Solar System and we observe icy planets only nearest to the Sun.

e. The model predicts icy planets farthest from the Sun and we observe icy planets there

**e. The closest** planets to the Sun should be rocky, and we do indeed see them there.

The nebular theory, **however**, states that a clouds will rotate quickly once it becomes **relatively tiny.**

The **nebular theory** proposes that a rotating cloud of material called a nebula, composed primarily of light components, flattened into the a protoplanetary disk and developed into a solar system made up of a star and **circling planets. **

To know more about** Solar System** visit:

https://brainly.com/question/12075871

#SPJ4

The** closest planets **to the sun should be ice, and we do indeed see icy worlds. The relationship between the nebular hypothesis of the solar system's creation is described in those sentences.

The planetary Venus, Mercury, Earth, Mars, Planets, Jupiter, Saturn, and Neptune are all part of our solar system, as are dozens of moons, hundreds of meteors, **meteorites**, and gaseous planets, as well as Pluto, a dwarf planet.

The Solar System is the only system in which a habitable planet has been observed, the one and only star mankind can observe up close, and the only planets we can explore with **spacecraft**. Research into the solar system is crucial for comprehending the evolution of planetary.

To know more about **solar system** visit:

https://brainly.com/question/12075871

#SPJ4

A point charge, q1, of 2.00 μC is placed on the x-axis at (−4.00 cm, 0 cm). An identical charge, q2, is placed at (4.00 cm, 0 cm). Find the total electric potential due to these charges at the following locations. Use kC = 8.99 × 109 N∙m2/C2.

Locations (located below)

Q#1: The center (0,0)

Q#2: On the Y-axis

Y=-10.0 cm

Y=-2.0 cm

Y=2.0 cm

Y=10.0 cm

Q#3 On the X-axis

X=-10.0 cm

X=-2.0 cm

X=2.0 cm

X=10.0 cm

Q#4: Find the electric potential at the center of a square with four point charges

q1, q2, q3, q4, placed at (5.00 cm, 0 cm), (0 cm, 5.00 cm), (−5.00 cm, 0 cm), and (0 cm, −5.00 cm), respectively, for the following cases.

A. q1 = q2 = q3 = q4 = 3.00 μC

B. q1 = q3 = 3.00 μC; q2 = q4 = −3.00 μC

C. q1 = q2 = 3.00 μC; q3 = q4 = −3.00 μC

The total **electric potential **due to these charges at the center is 9 * 10^5 J/C.

V = k × [q/r]

V = electric potential energy.

q = point charge.

r = distance between any point around the charge to the point charge.

k = Coulomb constant; k = 9.0 × 10^9 N.

at The center (0,0)

r = 4 cm

due to Q1

v1= k ( 2.00 μC/ 4 * 10^-2) = 9.0 × 10^9 * 0.5* 10^-4 =4.5 * 10^5 J/C

due to Q2

v2 = k ( 2.00 μC/ 2 cm) = 9.0 × 10^9 * 1* 10^-4 =4.5 * 10^5 J/C

total potential at (0.0) = 9 * 10^5 J/C

To learn more about **Electric potential** refer,

**https://brainly.com/question/19546125**

#SPJ1

Starting from rest, a freely falling object falls 125 meters in?

**Answer:**

5.05 sec

**Explanation:**

h = 1/2gt²

solve for t:

t² = (2h)/g

t = √(2h)/g = √((2)(125 m)) / (9.8 m/s²) = 5.05 s

What is cutoff frequency Mcq?

Minimum operating frequency or the cut off **frequency** for a rectangular waveguide is given by: f c = c 2 m 2 a 2 + n 2 b 2. a = length of the waveguide. b = height of the **waveguide**. m,n = modes of operation.

**What is a wavelength?**

To know more about **Wavelength**, click the link given below:

https://brainly.com/question/12377285

**#SPJ4**

a water pipe having 2.5 cm inside diameter carries water into the basement of a house at a speed of 0.90 m/s and a pressure of 170 kpa. if the pipe tapers to 1.2 cm and rises to the second floor 7.6 m above the imput point, what are the a) speed at the second floor? b) water pressure at the second floor?

a) **Speed** on the second floor is equal to 3.90 m/s

b) **Water pressure** on the second floor is 240000 Pa.

In fluid dynamics, **Bernoulli's principle** can be described as an increase in the speed of fluid occurring simultaneously with a decrease in static **pressure** or the fluid's **potential energy**.

The **constant** can be normalized in the** Bernoulli equation**. A common approach is total **head** or **energy** head H:

[tex]{\displaystyle H=z+{\frac {p}{\rho g}}+{\frac {v^{2}}{2g}}=h+{\frac {v^{2}}{2g}},}[/tex]

a) **speed** on the second floor can be calculated as:

[tex]Q_1=Q_2[/tex]

[tex]A_1V_1=A_2V_2[/tex]

[tex]\displaystyle \frac{\pi }{4}(d_1^2) \times V_1 = \frac{\pi }{4}(d_2^2) \times V_2[/tex]

[tex](2.5)^2\times 0.90 =(1.2)^2\times V_2[/tex]

V₂= 3.90 m/s

b)** water pressure **on the second floor can be calculated as:

[tex]{\displaystyle {\frac {P_1}{\rho g}}+{\frac {V_1^{2}}{2g}}+h_1 = {\frac {P_2}{\rho g} +{\frac {V_2^{2}}{2g}}} +h_2[/tex]

[tex]{\displaystyle {\frac {170\times 1000}{9.80\times 1000}}+{\frac {(0.90)^{2}}{2\times 9.80}}+7.6 = {\frac {P_2}{\rho g} +{\frac {(3.90)^{2}}{2\times 9.80}}}[/tex] here [tex]h_1-h_2 = 7.6[/tex]

[tex]{\displaystyle {\frac {P_2}{\rho g} = 24.215[/tex]

P₂ = 240000 Pa

Learn more about **Bernoulli's principle**, here:

https://brainly.com/question/13098748

#SPJ1

a 0.140-kg baseball is dropped and reaches a speed of 2.40 m/s just before it hits the ground and bounces. it rebounds with an upward velocity of 1.40 m/s. what is the change of the ball's momentum during the bounce?

The ball's change in momentum on the bounce will be "**0.308 kg.m/s."**

Since linear **momentum **is mv, it varies with each bounce by the same quantity, r = R. For instance, if a ball bounced 80% of its height each time, it would lose **20% of its energy.**

**Velocity and Motion**

The answer is that the mass of a baseball is m = 0.140 m.

-1.20 m/s is the** downward speed**.

Upward speed, v "= 1 m/s

Since we are aware of the momentum,** P = mv**

The force acting downward is: =** mv'**

When the data are put together, Pv = 0.140 (-1.20) Pv = -0.168 kg.m/s

The forward motion is now: = mv "Pv = 0.140 kg/s/s Pv = 0.140 kg/s/s

Therefore, the modification will be: = 0.140 - (-0.168)

Pv-Pu =** 0.308 kg/m/s**

To know more about **momentum **visit:-

https://brainly.com/question/24030570

#SPJ4

the speed of light drops to 2.26 × 108 m/s in water. what is the dielectric constant of water?

The **dielectric constant** of water is 1.760.

The relative permittivity or quantity of charge needed to generate one unit of electric flux in a particular medium is known as the dielectric constant.

We are given that,

**Speed **of light = c = 3 × 10⁸m/s

Speed of **light **drops in water= V = 2.26 × 10⁸ m/s .

The dielectric constant of water (k) can be calculated as,

v = c/√K

K = (c/v)²

K =(3 x 10⁸ / 2.26 x 10⁸)²

K = 1.760

To know more about **dielectric constant**

https://brainly.com/question/27881684

#SPJ4

Please help even one answer appreciated :)

An object's **momentum** may be calculated mathematically by multiplying its mass by its velocity. Mass plus velocity equals momentum.

**Mass in motion**, which is related to the mass of a moving body, is the straightforward definition of** momentum**. By multiplying the mass with the velocity, the amount of motion is calculated. Momentum is defined as the result of multiplying mass and velocity.

According to a mathematical formula, an object's momentum is determined by multiplying its mass by its speed. Mass multiplied by velocity equals momentum. Momentum is represented by the lower case letter p in physics. As a result, p = m • v may be used to rewrite the previous equation.

To learn more about** momentum** refer to:

**https://brainly.com/question/1042017**

#SPJ1

a 0.32-m-long violin string is tuned to play a above middle c at 440 hz. (a) what is the wavelength of the fundamental string vibration, and (b) what are the frequency and wavelength of the sound wave produced? (c) why is there a difference?

The** wavelength** of the fundamental **string vibration** is 0.64 m and the wavelength of the **sound wave** produced is 0.77 m. This difference is due to the change in speed of the sound wave in air and in the string.

**Sound wave** is a **mechanical wave **moves through a medium only. The **frequency** of a sound wave is called its pitch and it is the number of wave cycles obtained per unit time.

The wavelength for the **fundamental frequency** is = 2L

= 2 × 0.32 = 0.64 m

Now the speed of the **sound waves **in air = 340 m/s

frequency = 440 Hz or s⁻¹.

Thus, the wavelength of sound wave = speed/ frequency

= ( 340 m/s)/ 440 Hz = 0.77 m.

This change in **wavelength **from that of the fundamental vibration is due to the change in speed of sound waves in different mediums.

To find more on **sound waves**, refer here:

https://brainly.com/question/21995826

#SPJ1

Sound waves are transferred by the compression of particles. The closer the particles are to one another, the faster the energy is transferred. Therefore, sound energy directly depends upon the _________ of the medium.

The **sound** **energy** directly depends upon the **density** of the medium. The correct option is **A**. When particles are compressed, sound waves are transmitted. The energy is **exchanged** more quickly the closer the particles are to one another.

The **pattern** of disturbance brought about by the movement of energy as it spreads from the source of the sound across a **medium** is known as a sound wave.Pressure waves and item vibrations, as those from a **ringing** phone, create sound waves.

**Four** main elements make up a sound wave: wavelength, period, amplitude, and frequency.

Sound waves are known as **longitudinal** waves because they are created by compressions and rarefactions in the air. In a path **parallel** to the propagation direction, air molecules vibrate.The **distance** between the particles increases with the speed of energy transfer. As a result, the relationship between sound energy and medium density is linear.

For such more questions on **Sound waves:**

brainly.com/question/21995826

#SPJ4

What was the sonar originally invented to track?

**Answer:**

SONAR is short for Sound Navigation And Ranging. One of the earliest SONAR-like devices was invented by naval architect Lewis Nixon in 1906. It was designed to detect icebergs underwater to help ships navigate around them. This detection system became more important after the sinking of the in 1912.

**Explanation:**

Write a paragraph about atoms. Tell what atoms are, size of atoms, what particles make up

atoms and how atoms are arranged

**Answer:**

An atom is the smallest amount of matter that undergoes chemical changes. The accepted theory today is that the atom is composed of a positively charged nucleus made up of protons and neutrons, collectively known as a nucleon, around which is a cloud of negatively charged electrons.

Different experiences have allowed us to measure the size of atoms. Considered as a sphere, the atom has a radius of about 10-10 m and the nucleus has a radius of about 10-14 m. From this it can be deduced that the nucleus is about 10,000 times smaller than the atom.

They are organized and classified based on their atomic numbers, chemical properties, and electronic charge on the periodic table. Atoms are made up of smaller parts called subatomic particles, which include protons, neutrons, and electrons.

**Explanation:**

:)

**Answer:**

what is meant by force of an vehicle is 500000 N?

The force on the vehicle is 500000 N means that a force of 500000 N is being applied to the vehicle and its **momentum** is changing at a rate of 500k kg m/s²

Well, we all know Force is equal to the product of mass and **acceleration**. Force is nothing but, a measure of the rate of change of momentum of an object. When we say the force acting on any particle is x newtons, we mean that the particle is accelerating at x/m meter per square second at that instant (where m is the mass of the particle). In this case, we have been given that the force applied on the vehicle is 500000 newtons. 500000 newtons can be also written as 500k Newtons. So when we are applying a force of 500k **Newtons** on the vehicle, in this case, we can't really find the acceleration of the vehicle as no mass is given. But we can tell one thing here, that is, a force of 500k Newtons on the vehicle means that at that particular instant the rate of change of momentum is

500k kg m/s².

So, basically, a force of 500k Newtons means that the rate of change of momentum is 500k kg m/s².

To learn and understand more about **force**, please refer to the following link - https://brainly.com/question/25239010

If a net force of 10. Newtons acts on a 6. 0-kilogram mass for 8. 0 seconds, the total change of momentum of the mass is.

The total change of **momentum **of the **mass** is 80.016 kgm/s approximately 80 kgm/s.

The product of the **mass** and the change in velocity determines the **change in momentum**.

Since the mass is a constant, it stays the same.

A shift in momentum is caused by a change in **velocity**.

The letter " Δp" stands for the change in momentum.

As per the question, Net force = 10 N

Mass of the object = 6.0 Kg.

Time = 8.0 Sec.

As per **Newton's first law** of motion:

v=u+at, where, v = final velocity

u = initial velocity

a = acceleration

t = time

So, we can write it as: vf - vi = at (vf= final velocity, vi=initial velocity)---(i)

Applying **Newton's second law**

F = ma.

So, 10 = 8*a => a = 1.667 m/s^2.

So, from (i),

vf - vi = 1.667 x 8 = 13.336 m/s ---(ii)

So, change in momentum M = m(vf - vi)

Where M is a **change in momentum,** m is mass

So, the value of change in momentum will be

M = 6 x 13.336 = 80.016 kgm/s approximately 80 kgm/s.

For more questions on **change in momentum**

https://brainly.com/question/20363811

#SPJ4

Why do tariffs lower foreign prices?

The tariff will **Reduce imports** into the **domestic **country, and since its imports represent a sizeable **proportion** of the world market, world demand for the product will fall.

**What are tariffs?**

A tariff is a type of **tax **that a **country** imposes on imported goods at its borders. Tariffs have historically been a tool for governments to generate revenue, but they are also a way governments seek to protect domestic producers.

As a **protectionist** measure, tariffs increase the price of imported goods. As a result, consumers choose to buy relatively cheap domestic products instead.

In today's global** economy**, many products that consumers buy contain components from other countries or are assembled abroad. As a result, tariffs can also hit **consumers **of products they believe are made in their own country.

The tariff will **Reduce imports** into the **domestic **country, and since its imports represent a sizeable **proportion** of the world market, world demand for the product will fall.

To know more about **Tariffs**, visit:

https://brainly.com/question/8629679

#SPJ4

a ball moves with a constant speed of 4 m/s around a circle of radius 0.25 m. what is the period of the motion? [hint: for this calculation, you need to know the circumference of the circle.

The **period** of the **motion** will be equal to 0.39s.

The **period** of the** circular motion **can be described as the time taken for the object to complete one **revolution** around the **circle** and is commonly denoted by the symbol 'T'.

Given, the **speed** of the ball, v = 4 m/s

The **radius** of the ball, r = 0.25 m

The relation between the **speed**, **radius** of the circular path, and time **period**:

V = Rω

V = R (2π/T)

V = 2πR/T

4 = 2×3.14 × 0.25/T

T = 0.39 s

Therefore, the **period** of **motion** is equal to 0.39s.

Learn more about **Time period**, here:

https://brainly.com/question/24061216

#SPJ1

What is scope 3 for oil and gas?

A majority of the an organization's overall ghgs (GHG) emissions frequently come from scope 3 emissions, also known as value chain emissions.Although not every class will be **applicable to all enterprises**, the GHG Protocol lists 15 types of scope 3 emissions.

In many industries (and more than 90% in many** global corporations, **according to CDP reporting), scope 3 emissions, also known as "Value Chain emissions," make up the bulk of total emissions. These emissions are regarded as essential to combating** climate change**.

Scope 3 emission are** indirect emission** of greenhouse gases that are produced in the larger economy in addition to scope 2 emissions.They result from a facility's operations, but they come from **sources **that the facility's operations do not own or control.

To know more about** scope 3** visit:

https://brainly.com/question/29546969

#SPJ4

If astronomers discovered a new planet and found its period of rotation around the sun to be 105 years, how long would its semi-major axis length be as it orbited the sun in au?.

The **length** of the **semi-major** axis of the new planet will be 22.3 AU.

As per Kepler's law of period:

The square of a **planet's period** of revolution around the sun in an elliptical orbit is precisely equal to the cube of its **semi-major axis.**

Mathematically, we can write it as:

The period of a planet's orbit (P) squared is equal to the size of the semi-major axis of the orbit (a) cubed when it is stated in astronomical units because [tex]P^2 = a^3[/tex] according to Kepler's Third Law.

For earth T=1 year

r=1 AU

let us assume that [tex]r_p[/tex] is the radius of the new planet.

For new planet; [tex]T_p[/tex] = 105 years

Using **Kepler's 3rd law**:,

We can write it as:

[tex]\frac{T^2}{T_p^2}=\frac{r^3}{r_p^3} \\\\\Rightarrow\left(\frac{1}{105}\right)^2=\frac{(1)^3}{\left(r_p\right)^3}=0.0000907 \\\\\Rightarrow r_p=\left(\frac{1}{0.0000907}\right)^{\frac{1}{3}}\\\\=22.257 \mathrm{AU} \\[/tex]

Approximately 22.3 Years.

For more questions on **Kepler's 3rd law**

https://brainly.com/question/6867220

#SPJ4

In the figure, determine the character of the collision. The masses of the blocks, and the velocities before and after are given. The collision is

A) perfectly elastic.

B) partially inelastic.

C) completely inelastic.

D) characterized by an increase in kinetic energy

E) not possible because momentum is not conserved.

The correct answer is** B)** partially inelastic. If the masses of the **blocks **and the **velocities **before and after being given then The collision is **partially inelastic**.

To determine the character of the collision, you need to compare the kinetic energy before and after the collision. If the **kinetic energy **is the **same **before and after the collision, the collision is **elastic**. If the kinetic energy is **less **after the collision, the collision is **inelastic**. If the kinetic energy is **greater **after the collision, the collision is not possible because energy cannot be created or destroyed, it can only be **transformed **from one form to another.

Learn more about **Collision **here:

https://brainly.com/question/24915434

#SPJ4

you are merging onto the freeway, accelerating at a constant rate of 14 ft/sec2 from a stand still. how long (in sec) does it take you to reach merging speed at 70 mph? (round your answer to three decimal places.)

It take to reach **merging speed **at 70mph is 10.6 s

You should be travelling at or close to the speed of the oncoming traffic when merging into the motorway. It's acceptable if you move a little more slowly, but the goal is to prevent **traffic congestion**. To increase your speed and enable a seamless traffic merge, take use of the time you have on the ramp or in the merging lane.

Step one:

given data

acceleration, a= 14ft/sec^2

final velocity v= 70mph

first, let is convert mph to ft/sec

1mph is 1.46667 ft/sec

70 mph is x

cross multiply we have

x= 102.7ft/s

Step two:

we are using the first equation of motion

v=u+at

initial velocity u= 0m/s

102.7=0+14*t

102.7=14t

divide both sides by 10

t=10.6seconds

Therefore It take to reach **merging speed **at 70mph is 10.6 s

To learn more about **merging speed **refer to :

**https://brainly.com/question/26760585**

#SPJ1

What is the order and degree of differential equation Mcq?

The **order** of a **differential equation** is the order of the highest derivative appearing in it.

The **degree** of a differential equation is the **power** of the highest derivative occurring in it, after the Equation has been expressed in a form free from radicals as far as the derivatives are concerned.

**What is a differential equation?**

To know more about **differential equation,** click the link given below:

https://brainly.com/question/1164377

**#SPJ4**

A researcher is studying the effects of

negative outcomes on the human brain in

a psychological experiment. The

researcher shows ten participants various pictures

and designs. When the participants see a red star,

they are immediately given a brief, painful shock

and their brainwaves are analyzed. A different

group of ten participants is given the same

pictures and designs but are given no shock when

they see the red star.

What was the control in the experiment?

A.The picture of the red star.

B.The group that is given no

shock.

C.The electrical shock.

D.The pictures and designs.

The control in the **experiment **is option B. The group that is given no **shock**.

The **method **utilized by the researcher in scientific study to reduce the impact of unimportant factors is known as experimental control. The power of the independent variable to alter the dependent variable is further strengthened by experimental control. 9 Nov 2021

A **controlled **experiment is a scientific test carried out under predetermined circumstances in which only one (or a small number of) variables are altered at a time while all other variables are maintained constant.

Researchers use experimental controls to reduce the impact of unrelated experience and environmental factors, as well as to strengthen the conclusion that changes in the dependent variable are caused by the independent variable (the ability to infer causality).

Hence, option B is correct as it is not receiving any special treatment in the **experiment**.

Learn more about **experimental control** from

https://brainly.com/question/24708013

#SPJ1

how much work is done on a vacuum cleaner pulled 5 m by a force of 62n at an angle of 30 degrees above the horizontal

The **work done** by the vacuum cleaner which produced a force of 62 N is 268.77 J

The **force **produced by the vacuum cleaner = 62 N

The distance traveled by the vacuum cleaner = 5 m

The angle at which the vacuum cleaner is kept = 30°

The **work done **by the vacuum cleaner can be found using the formula,

W = Fdcosθ

where W is the work done

F is the force

d is the distance traveled

θ is the angle at which the vacuum cleaner is kept

Let us substitute the known values in the above equation, we get

W = 62 x 5 x cos 30°

= 310 x 0.867

= 268.77 J

Learn more about the **work **in

https://brainly.com/question/4095205

#SPJ4

if the coefficient of kinetic friction between a 26 kg crate and the floor is 0.34, what horizontal force is required to move the crate at a steady speed across the floor?

If the **coefficient of kinetic friction** between a 26 kg crate and the floor is 0.34, the required **horizontal force** to move the crate at a steady speed is 86.6 Newton.

**Steady speed** means the **acceleration** is zero.

According to the **Newton's first law** of motion, to produce a motion with zero acceleration, the net force must be equal to zero.

In the problem, the forces are the horizontal force and the friction force.

Hence, the net force is:

∑F = 0

Fh - friction = 0

Fh - μ . mg = 0

Where:

Fh = horizaontal force

m = mass of the crate = 26 kg

g = acceleration due to gravity = 9.8 m/s²

μ = coefficient of kinetic friction = 0.34

Plug all the parameters into the equation,

Fh - 0.34 x 26 x 9.8 = 0

Fh = 86.6 N

Learn more about **force** here:

https://brainly.com/question/25534663

#SPJ4

What is the difference between ode15s and ode45?

**ODE solver** ode15s does non-stiff problems more slowly than ode45, but it performs stiff problems more quickly. almost always The solver you should use initially is ode45. If there are rough tolerances or moderate stiffness present, ode23 may perform better than ode45.

The ODE solvers' preferred function is often ODE45. In order to calculate step size and estimate error, it compares approaches of orders four and five. Because ODE45 is so precise, using its **interpolant to produce** results at intermediate points is its default practice.

In cases of tight tolerances or when evaluating the ODE function is very costly, ode113 might be **more effective** than ode45. ODE 113 is a multistep solver; in order to calculate the current solution, it typically needs the solutions at several earlier time points.

To know more about **ODE solver **visit:-

https://brainly.com/question/29556200

#SPJ4

Which of these political values would be most important to a socialist? A. equality B. individualism C. free enterprise D. patriotism
Determine the volume of this prism
HELP!!!!!!!!!!!!!! ASAP!
You have one optic nerve in each eye.trueor false
Hi there! I really need help on this: Create a story using the following words: rainbow, dirt, tree, earth, love. Please use complete sentences, and answer asap!
Which Factor listed below is biotic. Bacteria, soil, sunlight, Rocks
narvella cut 1/2 of a pumpkin pie into 5 equal servings. what fraction of the whole pie is each of these servings?a : 1/4b : 1/2c : 1/10d : 1/8
Why was Abraham Lincoln chosen as the Republican party candidate in the Election of 1860?
Toby has created a map of his neighborhood. When he drew the map he noticed his house, his friend's house, and the playground formed a right triangle
easy algebra question
Giving brainliest plz answer correctly Which statement best explains how he compromise of 1850 attempted to resolve debates over the expansion of slavery?
Milk is a very weak acid. What might its pH value be ?
According to Mark Kurlansky, why did people use salt?
Help thanks ..... ........
Ill give brainiest whoever get it right!
FedEx is the world's largest express transportation company. In addition to the world's largest fleet of all-cargo aircraft, the company has more than 650 aircraft and 58.000 vehicles and trailers that pick up and deliver packages. Assume that FedEx sold a delivery truck that had been used in the business for three years. The records of the company reflected the following:Delivery truck cost $35,000Accumulated depreciation $23,000Required:1. Give the journal entry for the disposal of the truck, assuming that the truck sold fora. $12,000 cashb. $12.400 cashc. $11,500 cash2. Based on the three preceding situations, explain the effects of the disposal of an asset.
ANYONE IM RUNNING OUT OF TIME!!!!!
The radius of a circle is changing at the rate of 1/ inches per second. At what rate, in square inches per second, is the circles area changing when the radius is 5 inches?
Why has Randy come to visit Pony?Question 5 options:To ask Pony to lie to cover up Randy's involvement in Bob's death.To warn Pony to stay away from Cherry.To tell Pony he is going to tell the truth at the hearing.To demand to know why Pony killed Bob.
Give risk prevention tips in dancing?