**Answer:**

Energy should be transferred to an object in order to move it. ... This amount of energy transferred by the force to move an object is called work or work done. Thus, the relation between Work and Energy is direct. That is, the difference in the Kinetic energy of an object is work done by an object

What is the acceleration of a 7 kg object if a force of 63 N is applied?

**Answer:**

9m/s^2

**Explanation:**

F=ma

a=F/m

a=63/7

a=9m/s^2

what is the name for a force of gravity acting on an object

**Answer:**

Weight

**Explanation:**

**We call it "Ralph" or "the object's weight".**

In a transverse wave, the distance from any two consecutive crest or any two consecutive troughs is called the

**Answer:**

Wavelength

**Explanation:**

**Answer:**

Wavelength if it's the horizontal distance. Wave Height if it's vertical distance.

**Explanation:**

Take 100 PONTS!!!!!! PLEASE I NEED HELP FAST. Just look The picture.

**Answer:**

**i THINK it’s false. You don’t have to give me points ;-;**

**Explanation:**

**Answer:**

i think false and true is spelt wrong lol

**Explanation:**

PLEASE HELP WITH THIS ONE QUESTION

A bird lands on a bird feeder which is connected to a spring. The mass of the bird is exactly the same as the mass of the bird feeder. How does the added mass affect the period of oscillation of the bird feeder?

The period is less, but not halved.

The period is more, but not doubled.

The period is halved.

The period is doubled.

**Answer:**

The period is more, but not doubled.

**Explanation:**

Recall that the period of a mass on a spring is T=2πmk.

What is the magnitude of the force that is exerted on a 20 kg mass to give it an acceleration of 10.0

m/s2?

**Answer:Mass of the body = 20 kg.
**

**Final Velocity = 5.8 m/s.
**

**Initial velocity = 0
**

**Time = 3 seconds. **

**
**

**Using the Formula, **

**
**

** Acceleration = (v - u)/ t
**

** = (5.8 - 0)/ 3
**

** = 1.6 m /s².
**

**
**

**Now, Using the Formula, **

**
**

**Force = mass × acceleration
**

** = 20 × 1.6
**

** = **

**Explanation: I REALLY HOPE THIS HELPS I'M KINDA NEW AT THIS :] :] **

The magnitude of **requires force,** that is exerted on a 20 kg mass to give it an acceleration of 10.0 m/s^2 is **200 Newton.**

The definition of **force **in physics is: The push or pull on a mass-containing item changes its velocity.

An **external force** is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude. The application of **force **is the location at which force is applied, and the direction in which the force is applied is known as the **direction **of the **force**.

Given parameters:

**Mass **of the object: m = 20 kg.

**Acceleration **of the object: a = 10.0 m/s^2.

Hence, according to Newton's 2nd law of motion:

the magnitude of **requires force** = mass ×acceleration

= 20 × 10 Newton

= 200 Newton.

Hence, the magnitude of** requires force** is **200 Newton.**

Learn more about **force **here:

https://brainly.com/question/13191643

#SPJ5

An object is experiencing an acceleration of 0.4 m/s^2 while traveling in a circle of 35 m. What is it’s velocity?

**Answer:**

v = 3.74 m/s

**Explanation:**

Given that,

The acceleration of the object in circular path, a = 0.4 m/s²

The radius of the circle, r = 35 m

**We need to find the velocity of the object. The acceleration of an object on the circular path is given by :**

[tex]a=\dfrac{v^2}{r}\\\\v=\sqrt{ar} \\\\v=\sqrt{0.4\times35}\\\\v=3.74\ m/s[/tex]

**So, the velocity of the object is equal to 3.74 m/s.**

Two turtles are floating next to each other in a pond. One turtle has twice as much mass as the other turtle. The two turtles push off each other. Which statement correctly describes their resulting momenta?

a). The larger turtle has twice as much momentum.

b).The smaller turtle has twice as much momentum.

c).The turtles have the same momenta as one another.

d).The turtles each have negative values of momentum.

**Answer:**

B

**Explanation:**

the reason the small turtle has more momentum is because it was less an example is I have two rocks a rock that weighs 1 oz and another rock that weighs half a pound the one that is half a pound Falls faster in the one that weighs an ounce Falls last hopefully that makes sense

In 1666 at the age of 23, what scientist

developed the theories of gravitation inspired

by an apple falling from a tree?

A. Galileo Galilei

B. Issac Newton

C. Albert Einstein

D. Nicolaus Copernicus

**Answer:**

**Explanation:**

He first thought of his system of gravitation which he hit upon by observing an apple fall from a tree,

The incident occurring in the late summer of 1666.

I want answer plzz??

**Answer:**

a=0.5g ms^-2

**Explanation:**

Let tension be T

acceleration be a

g be gravitational acceleration 9.81ms^-2

They share same T and a

by force diagram the net force on m:

T-2.1g=2.1a

net force on M:

6.3g-T=6.3a

solve:

(T-2.1g)/(6.3g-T)=2.1a/6.3a

3T+T=12.6g

T=3.15g newton

3.15g-2.1g=2.1a

a=0.5g ms^-2

What is the unique geological feature found on Mercury surface?

**Answer:**

The surface of Mercury has landforms that indicate its crust may have contracted. They are long, sinuous cliffs called lobate scarps. These scarps appear to be the surface expression of thrust faults, where the crust is broken along an inclined plane and pushed upward.

**Explanation:**

I hope this helps a little bit.

How fast is a ball going when it hits the ground after being dropped from a

height of 16 m? The acceleration of gravity is 9.8 m/s2

A. 22.5 m/s

B. 28.1 m/s

O C. 17.7 m/s

D. 19.3 m/s

Hi there!

[tex]\large\boxed{\text{C. 17.7m/s}}[/tex]

Use the following kinematic equation to solve:

vf² = vi² + 2(ad)

Since the initial velocity is 0 m/s because it started at rest, we can eliminate this part of the equation:

vf² = 2ad

Plug in the given acceleration and distance:

vf² = 2(9.8)(16)

vf ≈ 17.7. The correct answer is C.

what are three physical properties of gases

**Answer: Gases have three characteristic properties: (1) they are easy to compress, (2) they expand to fill their containers, and (3) they occupy far more space than the liquids or solids from which they form. An internal combustion engine provides a good example of the ease with which gases can be compressed.**

**Explanation:**

How does the current in a series circuit compare

The amount of current is the same through any component in a series circuit. Resistance: The total resistance of any series circuit is equal to the sum of the individual resistances. Voltage: The supply voltage in a series circuit is equal to the sum of the individual voltage drops.

An object that is spinning, but not orbiting anything, has zero angular momentum.

True

False

The answer is fals:)

The course an object travels along is called DIRECTION.

A

TRUE

B

FALSE

DO NOT WRITE DOWN NONSENSE OR YOU WILL BE REPORTED!!!!!!!!

False I’m pretty sure sorry if I’m wrong !!

How is it difficult to perform electrostatic experiments on humid days

**Answer:**

that should be the right answer

A flat loop of wire consisting of a single turn of cross-sectional area 8.80 cm2 is perpendicular to a magnetic field that increases uniformly in magnitude from 0.500 T to 1.80 T in 1.10 s. What is the resulting induced current if the loop has a resistance of 2.20

**Answer:**

The magnitude of the induced current is** 4.73 x 10⁻**³ **A**.

**Explanation:**

Given;

number of turns, N = 1

cross sectional area of the loop, A = 8.8 cm² = 8.8 x 10⁻⁴ m²

change in magnetic field strength, ΔB = 1.8 T - 0.5 T = 1.3 T

change in time, Δt = 1.10 s

resistance of the loop, R = 2.2 ohm

The magnitude of the induced emf is calculated as;

[tex]emf = \frac{NA \Delta B}{\Delta t} \\\\emf = \frac{1 \times 8.8\times 10^{-4} \times 1.3}{1.10} \\\\emf = 1.04 \times 10^{-3} \ V[/tex]

The induced current in the loop is calculated as;

[tex]I = \frac{emf}{R} \\\\I = \frac{1.04 \times 10^{-3}}{2.2} \\\\I= 4.73 \times 10^{-4} \ A[/tex]

Therefore, the magnitude of the induced current is** 4.73 x 10⁻**³ **A**

An object is spun in a circle of radius 1.5m with a frequency of 6.0Hz. what is it’s velocity ?

**Answer:**

56.55 m/s

**Explanation:**

Frequency=1/T

1/6 = 0.1666666

V=(2*pi*1.5)/0.166666

Newton's law of gravitation is proportional to the inverse cube of the distance between the two objects.

True

False

true hope this helps

You start biking at the top of a steep hill. As you travel downhill, you apply

your brakes to control your speed. What are the energy transformations

taking place in this system?

A. Kinetic energy to mechanical energy to chemical energy

B. Potential energy to kinetic energy to heat energy

C. Thermal energy to mechanical energy to potential energy

D. Electric energy to kinetic energy to chemical energy

The answer is A I hope this helps.

Which graph illustrates constant speed?

A

B

C

D

I will reward you

**Answer:**

D because the line isn't changing which means constant speed it's going at the same rate so yea it's D

**Answer:**

D.

Hope that helps!?

**Explanation:**

Find the current if 20C of charge pass a particular point in a circuit in 10 seconds.

**Answer:**

**2 A**

**Explanation:**

From the question,

Q = it..................... Equation 1

Where Q = Quantity of charge, i = cudrrent, t = time.

Make i the subject of the equation

i = Q/t.......................... Equation 2

Given: Q = 20 C, t = 10 seconds.

Substitute these values into equation equation 2

i = 20/10

i = 2 A.

Hence the current is 2A

The current will be "2 A".**Charge**, **Q** = 20 C**Time**, **t** = 10 seconds

Given values are:

As we know,

→ [tex]Current = \frac{Charge}{Time}[/tex]

or,

→ [tex]i = \frac{Q}{t}[/tex]

BY substituting the values, we get

[tex]= \frac{20}{10}[/tex]

[tex]= 2 \ A[/tex]

Thus the answer above is right.

Learn more about **current** here:

https://brainly.com/question/19668907

4. When you are holding a book, energy is stored between the book and the Earth.

This type of energy is called

potential energy.

A. Elastic potential energy

B. Chemical potential energy

C. Gravitational potential energy

D. Kinetic energy

**Answer:**

gravitational potential energy

A wave with a frequency of 5Hz travels a distance of 40mm in 2 seconds.What is the speed of the wave

Answer:

20mm per second

Explanation:

lol

what kind of weather would u assosiate with higher perssure system? How does the density, humidity and air motion compare to that of low pressure system?

**Answer:**

Low pressure systems typically arrive with storms and clouds. Air motion is usually upwards, as heated are is less dense and more buoyant than cooler air. A high pressure system is typically cooler than its counter-part, and skies are usually clear. Low pressure systems carry more water vapor due to rising hot air cooling and condensing.

At the bottom of the air track, the glider hits and stretches a rubber band, that causes the glider to change direction. When the rubber band is maximally stretched, the glider's kinetic energy is zero, because it is momentarily at rest. Since the glider is at the bottom of the air track, its (gravitational) potential energy is also zero. So the sum of the kinetic energy and gravitational potential energies is zero, yet energy is conserved. Where did the energy go?

**Answer:**

That energy is the elastic potential energy of the rubber band. At the bottom position, all the energy is being stored in the stretched rubber band, in the form of elastic potential energy.

**Explanation:**

When the glider reaches the bottom, its kinetic energy and potential energy become zero due to zero velocity and zero height, respectively. So, the sum of these energies will become zero. This will violate the law of conservation f energy. Hence, there must be a third type of energy that accounts for the conservation of the energy of the system at other configurations.

**That energy is the elastic potential energy of the rubber band. At the bottom position, all the energy is being stored in the stretched rubber band, in the form of elastic potential energy.**

What factors determine electric potential?

A. Mass and distance

B. Charge and density

C. Charge and distance

O D. Mass and charge

**Answer: C. Charge and distance**

Due to historical difficulty in delivering supplies by plane, one of your colleagues has suggested you develop a catapult for slinging supplies to affected areas, similar to the electromagnetic lift catapults used to launch planes from aircraft carriers. This catapult is located at a fixed point 400 meters away and 50 meters below the target site. The catapult is capable of launching the payload at 67 meters per second and an initial launch angle of 50 degrees. Using your knowledge of kinematics equations, determine whether this would be sufficient to deliver the payload to the drop site.

**Answer:**

**Please see below as the answer is self-explanatory.**

**Explanation:**

[tex]v_{avgx} = v_{o}*cos 50 = 67 m/s * cos 50 = 43.1 m/s (1)[/tex]

Applying the definition of average velocity, since we know the horizontal distance to the target, we can find the time needed to travel this distance, as follows:[tex]t = \frac{\Delta x}{v_{avgx} } = \frac{400m}{43.1m/s} = 9.3 s (2)[/tex]

In the vertical direction, once launched, the only influence on the supply is due to gravity, that accelerates it with a downward acceleration that we call g, which magnitude is 9.8 m/s2.Since g is constant (close to the Earth's surface), we can use the following kinematic equation in order to find the vertical displacement at the same time t that we found above, as follows:[tex]\Delta y = v_{oy} * t - \frac{1}{2} *g*t^{2} (3)[/tex]

In this case, v₀y, is just the vertical component of the initial velocity, that we can find applying the definition of the sine of an angle, as follows:[tex]v_{oy} = v_{o}*sin 50 = 67 m/s * sin 50 = 51.3 m/s (4)[/tex]

Replacing in (3) the values of t, g, and v₀y, we can find the vertical displacement at the time t, as follows:[tex]\Delta y = (53.1m/s * 9.3s) - \frac{1}{2} *9.8m/s2*(9.3s)^{2} = 53.5 m (5)[/tex]

Since when the payload have traveled itself 400 m, it will be at a height of 53.5 m (higher than the target) we can conclude that the payload will be delivered safely to the drop site.While sitting in a boat, a fisherman observes that 2 complete waves pass by his position every 4 seconds. What is the period of these waves?A)2s B)8s C) 0.5 s D) 4s

**Answer:**

2

**Explanation:**

Because 2 waves 4 secs means 1 in 2s

The **period **of these waves is** 2s. **and The right option is** A)2s.**

The **period **of a wave is the time taken by a wave to complete one cycle.

The formula of **period **from the question is given below.

⇒ Formula:

T = t/2.................... Equation 1⇒ Where:

T =From the question,

⇒ Given:

t = 4 seconds.⇒ Substitute these value above into equation 1

T = 4/2T = 2 seconds.Hence, The **period **of these waves is** 2s.**

The right option is** A)2s**

Learn more about period here: https://brainly.com/question/22059232

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I need a constructed response of the story "Under fire" because i have to many baby siblings to baby sit and have a bunch of homework and personal things going on. I really need a constructed response for it and here is the questionConstructed Response Look back at Passage A: Calm Under Fire. A central idea of the passage is that Henry Ossian Flipper became the first black graduate of West Point and a successful engineer through his determination in facing overwhelming obstacles. Identify and explain TWO relevant details from the passage that support the central idea. Use the RACECE format.Thank you so much to whoever answers this because i don't have enough time to finish this essay.
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