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Vesna [10]
3 years ago
14

There was a major collision of an asteroid with the Moon in medieval times. It was described by monks at Canterbury Cathedral in

England as a red glow on and around the Moon. How long (in s) after the asteroid hit the Moon, which is 3.58 ✕ 105 km away, would the light first arrive on Earth?
Physics
1 answer:
soldi70 [24.7K]3 years ago
4 0

Answer:

1.28 s

Explanation:

The expression to find the distance traveled by light is,

d = ct

Here is distance is d,  v is the speed and t is the time.

Rearrange the expression for the time,

t = \frac{d}{c}

Substitute 3.58 x 10^{8} m for d and 3 .00 x 10^{8}  m/s  for c in the expression of time,

t = \frac{3.58 * 10^{8 } m  }{3.00 * 10^{8} m/s} = 1.28 s

Hence light will arrive at earth after.

1.28 s

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