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Ludmilka [50]
3 years ago
7

A man drops a baseball off of the top of the Empire State Building. If the action force is the Earth pulling on the ball, then w

hat is the reaction force?
Physics
2 answers:
stepladder [879]3 years ago
7 0
Reaction force is the ball pulling up on the Earth. Every action has an equal and opposite reaction, so when the Earth pulls on the baseball, the baseball pulls back on the Earth with equal force
crimeas [40]3 years ago
3 0
Nitro5315 is spot on.  And the reason the ball "falls down" to the ground but the Earth doesn't seem to "fall up" to meet the ball is because the Earth's mass is so much larger than the ball.  Nevertheless the Earth does in fact accelerate a little bit upward.
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Two air track carts move along an air track towards each other. Cart A has a mass of 450 g and moves toward the right with a spe
ra1l [238]

Answer:

0.465 kgm/s

Explanation:

Given that

Mass of the cart A, m1 = 450 g

Speed of the cart A, v1 = 0.85 m/s

Mass of the cart B, m2 = 300 g

Speed of the cart B, v2 = 1.12 m/s

Now, using the law of conservation of momentum.

It is worthy of note that our cart B is moving in opposite directions to A

m1v1 + m2v2 =

(450 * 0.85) - (300 * 1.12) =

382.5 - 336 =

46.5 gm/s

If we convert to kg, we have

46.5 / 100 = 0.465 kgm/s

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4 years ago
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Answer:

129.12 ml

Explanation:

If answer is correct feel free to replay me for explanation.

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