Question


The team monitoring a space probe exploring the outer solar system finds that radio trasmissions from the probe take 3.99 hours to reach earth. How distant (in meters) is the probe?
c = speed of light in a vacuum = 3*10^8 m/s approximately
3.99 hr * 3600 seconds/hr= 14364 = 1.4*10^4 s
distance =speed * time
= 3*10^8 * 1.4*10^4 = about 5 * 10^12 meters, quite far

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