The speed of light is 3 x 10 8 meters/second. If the sun is 1.5x 1011 meters from earth, how many seconds does it take light to reach the Earth. Express your answer in scientific notation
2006-12-11 16:35:48 · 5 answers · asked by xyre_cool 1 in Science & Mathematics ➔ Astronomy & Space
Speed = Distance / Time
Rearranging this equation,
Time = Distance / Speed
Speed = 3 E8 m/s
Distance = 1.5 E11 m
Time = ?
Time = 1.5 E11 m / 3 E8 m/s
Time = 500 seconds
In scientific notation,
Time = 5 E2 seconds = 5 x 10^2 seconds
2006-12-11 16:39:31 · answer #1 · answered by mrjeffy321 7 · 2⤊ 0⤋
Speed Of Light In Seconds
2016-11-09 01:45:06 · answer #2 · answered by ? 4 · 0⤊ 0⤋
1.5 x 10^11/3x10^8 = 500 seconds
2006-12-11 16:40:53 · answer #3 · answered by scubamasterme 3 · 0⤊ 0⤋
500 seconds, or 8.33 minutes, so if the sun disappeared this instant, we'd not know till after 8 minutes have passed!
2006-12-11 17:18:25 · answer #4 · answered by maD mOna 2 · 0⤊ 0⤋
Distance divided by speed is time
2006-12-11 16:40:01 · answer #5 · answered by arbiter007 6 · 0⤊ 0⤋
a few minutes
499 to be exact but you can round it off to 500...
2006-12-11 16:38:16 · answer #6 · answered by RP 2 · 0⤊ 0⤋