SOLUTION: A space probe leaves Earth at the rate of 3 km/s. After 100 days, a radio signal is sent to the probe. Radio signals travel at the speed of light, about {{{3x10^5}}} km/s. About ho
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Question 553333: A space probe leaves Earth at the rate of 3 km/s. After 100 days, a radio signal is sent to the probe. Radio signals travel at the speed of light, about km/s. About how long does the signal take to reach the probe? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! A space probe leaves Earth at the rate of 3 km/s. After 100 days, a radio signal is sent to the probe. Radio signals travel at the speed of light, about km/s. About how long does the signal take to reach the probe?
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100 days = 8640000 seconds = 8.64E6 seconds
d = r*t
d = 3*8.64E6 km = 2.592E7 km
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t = d/r = 2.592E7/3E5 = 0.864E2 seconds
t = 86.4 seconds for the signal to reach the probe.
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