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If you were standing on the moon and you had a radio signal transmitter, you could send the radio signal to Earth in 1.28 seconds. If radio waves travel at 3.00 X 1018 m/s, what is the distance from the moon to the earth in kilometers?

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Blacklash

Answer:

Distance between moon and earth = [tex]3.84*10^{5}km[/tex]

Explanation:

 Distance traveled by radio waves = Velocity of radio waves * Time taken by radio waves

 Velocity of radio waves = [tex]3*10^{8}m/s[/tex]

 Time taken by radio waves = 1.28 seconds

 So distance traveled by radio wave = [tex]3*10^{8}*1.28=3.84*10^{8}m[/tex]

 Distance between moon and earth = [tex]3.84*10^{8}m[/tex]=[tex]3.84*10^{5}km[/tex]

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