3 years ago

A meteor is approaching earth, what's its motion?

Physics

1 answer:

Sedbober [7]3 years ago

3 0

Constant acceleration

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Consider the model above. It represents the electrical force. As r increases, the attractive force decreases. How would this mod

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Answer:

As we keep on increasing the radius the value of the gravitation force of attraction decreases and as we decrease the radius the gravitation force increases.

Explanation:

Like the coulombs law of electrostatics, the law of gravitation also depends inversely on the square of the value of r. Therefore, as we keep on increasing the value of r the value of the gravitation force decreases and as we decrease the value of the r the value of gravitation force increases.

Gravitation Force= $\frac{Gm_{1}m_{2} }{r^{2}}$

Coulombs's Law= $\frac{Kq_{1}q_{2} }{r^{2}}$

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What does it mean for a reaction to be endothermic? choose 2 of the following

Rainbow [258]

Answer: I would choose options C and D

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2 years ago

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Mary starts from her house, walks 80 meters south, and stops to chat with her aunt on the sidewalk. After chatting for a few min

marin [14]

Mary walks:
d 1 = 80 m, d 2 = 125 m, d 3 = 45 m
t = 10 minutes = 600 seconds;
Average speed:
v = ( d 1 + d 2 + d 3 ) / t
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Answer:
E ) 0.42 meters/second

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