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3 years ago

How old is the moon!

Physics

2 answers:

Tatiana [17]3 years ago

6 0

Answer:

4.53 billion years old

Explanation:

<u>Moon is considered to be formed about 60 million years later to the formation of the solar system. </u>The rocks brought from surface of moon suggest its age to be about<u> 4.53 billion years. </u>The Giant-impact hypothesis suggests that moon was formed when a Mars sized object collided with the Earth, the debris accreted to from the moon.

wolverine [178]3 years ago

5 0

4.53 billion years

1.653 trillion days

39.68 trillion hours

2.381 × 10^15 minutes

1.429 × 10^17 seconds

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3 years ago

A test of the prototype of a new automobile shows that the minimum distance for a controlled stop from 95 km/h to zero is 55 m.

iris [78.8K]

Answer:

-0.64525g

Explanation:

t = Time taken for the car to stop

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Equation of motion

$v^2-u^2=2as\\\Rightarrow a=\frac{v^2-u^2}{2s}\\\Rightarrow a=\frac{0^2-95^2}{2\times 0.055}\\\Rightarrow a=-82045.45\ km/h^2$

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Dividing both the accelerations, we get

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3 years ago

A rocket starting from its launch pad is subjected to a uniform acceleration of 100 meters/second2. Determine the time needed to

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3 years ago