A lower ramp will be longer, allowing for less force to be used, but makes an object travel a greater distance.
True or false??

Answer:

V1 A1 = V2 A2

V1 = 10m/s

A1 = 8m

10x8 =80

V2 =?

A2 = 4m

80 = V2 x 4

÷4

20 = V2

V2 =20m/s

Explanation:

If one halfs, the other doubles & vice versa. (Like inverse proportion or the reciprocal). That's why when you half 8m, the velocity doubles, on the other side. Then, balances out.

Hope this helps!

Answer:

The magnitude or strength of an electric field in the space surrounding a source charge is related directly to the quantity of charge on the source charge and inversely to the distance from the source charge. The direction of the electric field is always directed in the direction that a positive test charge would be pushed or pulled if placed in the space surrounding the source charge.

Explanation:

I really hope this helps you!

The rank for the strength of electric field can be given as D>B>E>C>A. The amplitude or intensity of such an electric field inside the region around a source charge is proportional to the amount of charge.

Electric field lines are a paper representation of electric field lines. These are drawings that employ lines and arrows to illustrate electric fields surrounding charged objects, making them highly useful in understanding field intensity and direction.

The amplitude or intensity of such an electric field inside the region around a source charge is proportional to the amount of charge just on source charge as well as inversely proportional to the distance first from source charge. The rank for the strength of electric field can be given as  D>B>E>C>A.

Therefore, the rank for the strength of electric field can be given as  D>B>E>C>A.

To learn more about electric field lines, here:

https://brainly.com/question/24195820

#SPJ2

Answer:

Hooke’s law can be applied to all materials which come back to original shape upon withdrawal of the load. It is applicable to all materials which follow the linearity of stress and strain in the elastic limit. Any object made of steel or aluminum or any other metals that follows the stress-strain linearity in the elastic zone uses Hooke’s law.

Explanation:

Answer:

No.

Materials which obeys Hook's law are called elastic material.

Elastic material are material which return to their original shape and size after force deforming them is removed.

Answer:

9.8 N downward

Explanation:

The weight force is defined as w = mg, where m is the mass of the object and g = 9.8 m/s^2. Plugging in values shows that the force exerted on the ball is 9.8 N, downwards toward the ground.

Answer: The motion of the earth around the sun in its orbit is known as revolution. The earth takes 365.26 days to complete one revolution. The different seasons we experience in a year are a result of this revolution. At the same time, the earth's motion about its own axis has termed the rotation of the earth.

Explanation:

Answer:

The object will have a constant acceleration.

Explanation:

F = ma, a = F/m, F amd m are both constant, so a = constant.

a) The expression to determine the velocity of cart A is [tex]v_{A} = 2\cdot \sqrt{g\cdot H}[/tex].

b) The expression to determine the velocity of cart B is

[tex]v_{B} =\sqrt{2\cdot g\cdot H }[/tex].

c) The final velocity of the carts after the collision is [tex]v = \left(\frac{1-\sqrt{2}}{3} \right)\cdot \sqrt{g\cdot H}[/tex].

d) The collision is inelastic since a part of the energy of the entire system is lost when they stick together.

In this question we shall apply principle of energy conservation and principle of linear momentum conservation to model an inelastic collision between two carts.

a) The combination of cart and ramp can be considered a conservative system as there are no non-conservative forces (i.e. friction), the final velocity of cart A ([tex]v_{A}[/tex]) is related to the change in gravitational potential energy:

[tex]\frac{1}{2}\cdot M\cdot v_{A}^{2} = M\cdot g \cdot 2\cdot H[/tex] (1)

Now we clear [tex]v_{A}[/tex] and simplify the resulting expression:

[tex]v_{A} = 2\cdot \sqrt{g\cdot H}[/tex]

The expression to determine the velocity of cart A is [tex]v_{A} = 2\cdot \sqrt{g\cdot H}[/tex]. [tex]\blacksquare[/tex]

b) We apply the same approach used in part b) to find the final velocity:

[tex]\frac{1}{2}\cdot (2\cdot M) \cdot v_{B}^{2} = (2\cdot M)\cdot g \cdot H[/tex] (2)

Now we clear [tex]v_{B}[/tex] and simplify the resulting expression:

[tex]v_{B} =\sqrt{2\cdot g\cdot H }[/tex]

The expression to determine the velocity of cart B is

[tex]v_{B} =\sqrt{2\cdot g\cdot H }[/tex]. [tex]\blacksquare[/tex]

c) The final velocity ([tex]v[/tex]system is determined by principle of linear momentum conservation:

[tex]3\cdot M\cdot v = M\cdot 2\cdot \sqrt{g\cdot H}-2\cdot M\cdot \sqrt{2\cdot g\cdot H}[/tex]

[tex]3\cdot v = 2\cdot (1-\sqrt{2})\cdot \sqrt{g\cdot H}[/tex]

[tex]v = \left(\frac{1-\sqrt{2}}{3} \right)\cdot \sqrt{g\cdot H}[/tex]

The final velocity of the carts after the collision is [tex]v = \left(\frac{1-\sqrt{2}}{3} \right)\cdot \sqrt{g\cdot H}[/tex]. [tex]\blacksquare[/tex]

d) The collision is inelastic since a part of the energy of the entire system is lost when they stick together. [tex]\blacksquare[/tex]

To learn more on collisions, we kindly invite to check this verified question: https://brainly.com/question/13876829

Answer:

First Condition of Equilibrium is that it must be experiencing no acceleration or the external forces acting on the body should be zero.

Answer:

First Condition of Equilibrium :

The net force in all direction must be zero

         Sum of all force = 0  or  net F = 0

Explanation:

Examples :

Answer:

A

Explanation:

The universe was created from a cosmic explosion.

Answer:

True

Explanation:

Answer:

The answer is T (True)

Explanation:

Answer:

11km

Explanation:

5 + 4 + 2 = 11 (The whale traveled for 11km even if it changes direction)

A convex mirror is a hollow spherical is divided into pieces the exterior surface of each cut portion is painted. The image of the plant has real, inverted, and smaller image characteristics.

When a hollow spherical is divided into pieces and the exterior surface of each cut portion is painted, it forms a mirror, with the inner surface reflecting the light.

A concave mirror is a name for this sort of mirror. An enlarged and fake image is caused when the concave mirror is positioned too near to the object.

When the distance between the item and the mirror is increased, however, the size of the image decreases, and a true picture is generated. The picture created by the concave mirror may be manipulated.

To learn more about the concave mirror refer to the link;

https://brainly.com/question/25937699

Answer:

Real, Inverted, Smaller.

Explanation:

Just got right

Answer:

So sorry I found the answer a while ago but forgot!

Explanation:

The distance from the Sun where ice and gases become prevalent on a planet's surface relative to liquid water is defined as the frost line.

A frost line also known as frost depth or freezing depth, is the depth to which the groundwater in soil is expected to freeze.

It is the distance from the Sun where ice and gases become prevalent on a planet's surface relative to liquid water.

Thus, the distance from the Sun where ice and gases become prevalent on a planet's surface relative to liquid water is defined as the frost line.

Learn more about frost line here: https://brainly.com/question/11705391

Answer:

A

sound waves are longitudinal waves with the oscillation parallel to the direction in which energy is transferred

A longitudinal wave with the oscillation parallel to the direction in which energy is transferred is the correct. Therefore option A is correct option.

Electromagnetic wave are the wave that contains both electric wave and magnetic wave. These two waves are perpendicular to each other. There are two kinds of this wave, one is longitudinal wave and transverse wave.

When movement of particles of wave move parallel to the direction of wave propagation. To go in parallel direction, there is two way one is in the direction of propagation or anti to the direction of propagation. Transverse is the wave in which wave particle travel perpendicular to the direction of propagation.

The wave that is present in the sound wave is the longitudinal wave.  A longitudinal wave with the oscillation parallel to the direction in which energy is transferred. Therefore option A is correct option

To know more about Electromagnetic wave, here:

https://brainly.com/question/12289372

#SPJ2

The relationship between object distance, image distance, and focal length of a spherical mirror is given by

1/f=1/v+1/u

Where

f= focal length of a spherical mirror (distance between the pole and the principal focus of the mirror)

u= object distance (distance between pole and object)

v= image distance (the distance between pole and image)

Answer:

Kangaroo should be the answer.

Answer:

Kangaroo So there's your answer

Explanation:

Their numbers became so large that they destroyed crops and land, leading to soil erosion. They also negatively affected agriculture and plants by overgrazing. Not only did the rabbits wreak havoc on Australian croplands, but they also contributed to the decline of native plant and animal species.

Answer:

The answer is the kinetic energy of sled B after it crash is 6439j.

Answer:

Container 1

Explanation:

The reason why there will be less pressure in container 1 is that it's colder than container 2. You must have learned right, that a colder thing has its molecules less moving, and they don't expand, instead they actually decrease in volume? In the same way, it's applied to gas also. So that's why, because container 1 has 15C temperature, which is half less than container 2's 30C, that's why, container 1 has less pressure than Container 2.

So hence, container 1 has less pressure than container 2 because of its a lower temperature, which doesn't make the molecules expand, and move around that much.

THANKS!

Answer:

(B) electromagnetic radiation

Explanation:

Answer: B electromagnetic radiation

Explanation: hope this helps ik im a bit late though

Answer:

The first part of the question is asking about BUOYANT FORCE or UPTHRUST.

Upthrust =TRUE WEIGHT-APPARENT WEIGHT

TRUE WEIGHT=mg

TRUE weight=50kg×10m/s²

=500N

upthrust=500N-380N

FB=120N

volume of the rock=mass/density.

since the granite is completely submerged, the volume of the displaced liquid will be equal to the volume of the body.

upthrust=Vdg

120N=V×1000kg/m³×10m/s²

120N=V×10000kg/m²s²

120/10000=V

v=0.012m³

please mark brainliest, hope it helped

Answer:

Balanced forces are equal and opposite in direction, they act on the same body. The net force due to these forces is zero.

Explanation:

Answer:

Balanced forces are equal and opposite in direction, they act on the same body. The net force due to these forces is zero.

Answer:

1/3 kg

Explanation:

[tex]a = \frac{f}{m} = \frac{1}{3 }kg[/tex]

Answer:

V1 = S / t1 = speed up stalled escalator = 10/94 = .106 m/s

V2 = S / t2 = speed of escalator = 10 / 60 = .167 m/s

V = V1 + V2     combined speed

T = S / V = 1 / t1 + 1 / t2 = t1 * t2 / (t1 + t2)

T = 60 * 94 / (60 + 94) = 36.6 sec

Check: combined speed = .106 + .167 = .273 m/s

T = 10 / .273 = 36.6

Answer:

P=mgh

P=mghm=55

P=mghm=55g=9.8 or ~10

P=mghm=55g=9.8 or ~10h=27

Explanation:

hope it will help you have a great day bye and Mark brainlist if the answer is correct

[tex]kai6417[/tex]

#carry on learning

Let there be light! At the flick of a switch, a light bulb can light or illuminate an entire room, but what else is happening? One the basic laws of physics, the conservation of energy, tells us that energy is neither created nor destroyed: rather, it can only be transformed from one form to another. In the case of the light bulb, electrical energy is being transformed into light and thermal (heat) energy. Different wattages and types of bulbs give off varying amounts of light and heat. In this light bulb science project, we'll be working with incandescent and compact fluorescent lamp bulbs (CFL’s).

Answer:

about 13.8 billion years old