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2 years ago

What are the effects of gravity on earth?

Physics

2 answers:

Sliva [168]2 years ago

5 0

Answer:

Without it, we could not survive on Earth. Earth orbits the sun due to the gravity of the sun, which maintains us at a convenient distance from it to enjoy the sun's warmth and light. It keeps the air we need to breathe and our atmosphere in place. Our planet is held together by gravity.

sattari [20]2 years ago

4 0

The gravitational pull of the moon pulls the seas towards it, causing the ocean tides. Gravity creates stars and planets by pulling together the material from which they are made.

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What equation do we use to solve?

aev [14]

V(y) is the same in all cases so time taken for all cannonballs to go up and down is the same.

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4 years ago

A box is being dragged across the floor at a constant speed by a rope pulling horizontally on it. friction is not negligible. id

Elena-2011 [213]

Weight (W), the normal force( N), and the tension force( T )in the string will all be forces operating on the box.

<h3>What is tension force?</h3>

The tension force is described as the force transferred through a rope, string, or wire as opposing forces pull it.

The tension force is applied along the whole length of the wire, pulling energy equally on both ends.

A horizontally pulling rope is dragging a box across the floor at a consistent speed. Friction is significant.

Hence, the force acting on the box will be weight W, Normal force N, and the tension force T, in the string.

To learn more about the tension force refer to the link;

brainly.com/question/2287912

#SPJ1

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2 years ago

What is the displacement of a person walking 20 m North, and then walks 20 meters South. *

Anuta_ua [19.1K]

0,0 if you’re looking for plot .

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3 years ago

A ball is projected with an initial velocity of 40 meter per second and reached maximum height of 160 meters calculate tge angle

Andru [333]

There's a problem with the question as given. Even with a maximum projection angle of θ = 90°, the initial velocity is not large enough to get the ball up in the air 160 m. With angle 90°, the ball's height y at time t would be

y = (40 m/s) t - 1/2 g t ²

Set y = 160 m, and you'll find that there is no (real) solution for t, so the ball never attains the given maximum height.

From another perspective: recall that

v ² - v₀² = 2a ∆y

where

• v₀ = initial velocity

• v = final velocity

• a = acceleration

• ∆y = displacement

At its maximum height, the ball has zero vertical velocity, and ∆y = maximum height = 160 m. The ball is in free fall once it's launched, so a = -g.

So we have

0² - (40 m/s)² = -2g (160 m)

but this reduces to

(40 m/s)² = 2 (9.8 m/s²) (160 m)

1600 m²/s² ≠ 3136 m²/s²

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3 years ago

A body of mass 2.78 kg is pushed straight upward by a 31.3 N vertical force. What is its acceleration (in m/s2)

Bingel [31]

To solve this problem we will apply the concepts related to Newton's second law for which the product of mass and acceleration is defined as the force applied to an object. Mathematically this is,

$F_{net} = ma \rightarrow a = \frac{F_{net}}{m}$