The distance between the Earth and the Moon is 3.85 x10³ m. During the Apollo 15 mission, astronaut David Scott was often communicating lunar findings from the Moon to the Earth How much time did it take for his voice to reach the Houston via radio waves? 0.99 s 1.57 s 2.11 s 1.28 s 1.76 s

The distance between the Earth and the Moon is 3.85 x10³ m. During the Apollo 15 mission, astronaut David Scott was often communicating lunar findings from the Moon to the Earth How much time did it take for his voice to reach the Houston via radio waves? 0.99 s 1.57 s 2.11 s 1.28 s 1.76 s

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter1: Getting Started

Section: Chapter Questions

Problem 30PQ

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Concept explainers

Speed of light

The speed at which the light travels in a vacuum is unbiased for both the source and inertial frame of reference of the observer. This was postulated by the physicist, Albert Einstein, by observing the theory of electromagnetism of Maxwell. Also, there was no evidence for the luminiferous aether, that is, the medium for the propagation of light where the electromagnetic field exists.

Question

The distance between the Earth and the Moon is 3.85 x108 m. During the Apollo 15 mission, astronaut David Scott was often communicating lunar findings from the Moon to the Earth. How much time did it
take for his voice to reach the Houston via radio waves?
0.99 s
1.57 s
2.11 s
1.28 s
1.76 s

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