Physics question! I don't understand it?
Suppose the Sun is 1.54936 × 10^8 km from Earth. The speed of light is 2.99792 × 10
8 m/s. How long does it take for its light to reach us?
Answer in units of min
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Answers & Comments
t = D/v = 1.54936E11/2.99792E8 = 516.8 sec = 8.61 min
Notice how I changed the exponent in the distance so it would be expressed in meters, not km....