Physics
Physics, 13.09.2019 01:30, triggernugget05

Distance of light travel the distance from moon can be found with the of mirrors left on the moon by astronaut. a pluse of light is sent to the moon and returns to earth in 2.562s

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Physics, 17.07.2019 12:30, rubal6
The speed of light is 3.0x10^5 km/sec and it takes light 1.3 seconds for light to travel from the moon to earth froim this information what is the distance to the moon
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Physics, 22.08.2019 19:30, Jgrant500
On the moon's surface, lunar astronauts placed a corner reflector, off which a laser beam is periodically reflected. the distance to the moon is calculated from the round-trip time. the earth's atmosphere slows down light. assume the distance to the moon is precisely 3.84×10^8 m, and earth's atmosphere (which varies in density with altitude) is equivalent to a layer 40.0 km thick with a constant index of refraction n=1.000293. what is the difference in travel time for light that travels only through space to the moon and back and light that travels through the atmosphere and space?
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Physics, 18.09.2019 04:00, owenwernert
Light travels at a constant speed of 3.0×108 m/s in a vacuum. (a) it takes light about 1.3 seconds to travel from the earth to the moon. estimate the distance of the moon from the earth's surface, in meters. (b) the astronomical unit (abbreviated au) is equal to the distance between the earth and the sun. one au is about 1.5×1011 m. if the sun suddenly ceased to emit light, how many minutes would elapse until the earth went dark?
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