Question
A space probe of the surface of Mars sends a radio signal back to the Earth, a distance of 3 x 1010 km. Radio waves travel at the speed of light (3.00 x 108 m/s).
How far away is the space probe?
How many seconds does it take for the signal to reach the Earth?
How many hours is this?
How far away is the space probe?
How many seconds does it take for the signal to reach the Earth?
How many hours is this?
Answers
3E10 km x (1000 m/1 km) = 3E13 meters.
distance = rate x time.
3E13 = 3E8 x time.
Solve for time in seconds.
?sec x (1 min/60 sec) x (1 hour/60 min) = ?hours.
distance = rate x time.
3E13 = 3E8 x time.
Solve for time in seconds.
?sec x (1 min/60 sec) x (1 hour/60 min) = ?hours.
234.33s
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