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Ivanshal [37]
3 years ago
8

On the Moon's surface, lunar astronauts placed a corner reflector, off which a laser beam is periodically reflected. The distanc

e to the Moon is calculated from the round-trip time. The Earth's atmosphere slows down light. Assume the distance to the Moon is precisely 3.84 × 10 8 m 3.84×108 m , and Earth's atmosphere (which varies in density with altitude) is equivalent to a layer 25.0 km 25.0 km thick with a constant index of refraction n = 1.000293 n=1.000293 . What is the difference in travel time for light that travels only through space to the moon and back and light that travels through the atmosphere and space? difference in travel time:

Physics
1 answer:
dimulka [17.4K]3 years ago
7 0

Answer:

4.88 x 10∧-8 sec

Explanation:

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3 0
3 years ago
The machine in the figure is ideal and an effort force of
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1.5 m

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Let the distance from the box to the pivot be c.

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From the question given above, the following data were obtained:

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Force of resistance (Fᵣ) = 14 N

Distance from the box to the pivot (c) = 0.75 m

Distance from the pivot to the effort (y) =?

Clockwise moment = Fₑ × y

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Clockwise moment = Anticlock wise moment

Fₑ × y = Fᵣ × c

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5 0
2 years ago
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