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ZanzabumX [31]
3 years ago
14

How long does it take a message to travel from earth to a spacecraft at mars at its farthest from earth (about 400 million km)?

express your answer to three significant figures and include the appropriate units. t =?
Physics
1 answer:
seraphim [82]3 years ago
5 0
<span>A message needs to be traveled to mars from earth. Distance between Earth and Mars (given) s = 400 million km
 Speed of light = 3.00—10^5 km/ sec
 We know Velocity = distance / time => time = distance / velocity
 Time taken t = 400 million km / 3.00—10^5 = 400 x 10^6 / 3 x 10^5 = 1333.3 sec Time taken t = 22 min</span>
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