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Title: The distance to the moon can be found with the help of mirrors left on the moon by astronauts? Post by: o2blea on Sep 28, 2012 The distance to the moon can be found with the help of mirrors left on the moon by astronauts. A pulse of light is sent to the moon and returns to Earth in 2.562 s. Using the defined speed of light, calculate the distance from Earth to the moon.Please help.
Thanks. Title: The distance to the moon can be found with the help of mirrors left on the moon by astronauts? Post by: Julia Jeffrey on Sep 28, 2012 For the entire, two-way trip, the distance is:
d = ct So the distance to the moon is just ct/2. They give you the time. Look up the speed of light (c)--it should be in your book. Multiply and divide by 2. Title: The distance to the moon can be found with the help of mirrors left on the moon by astronauts? Post by: rk_9879 on Sep 28, 2012 c = 299792458 (speed of light in metres / sec)
rt = 2.562 (round trip) ow = 2.562 / 2 (one way) = 1.281 seconds d = ow * c (distance = time one way * speed of light) d = 1.281 * 299792458 d= 384034138.698 meters distance is 384,034.14 kilometers to the moon as measured via laser light(non-vacuum) bouncing off a laser ranging retroreflector array left by Apollo 11 astronauts Buzz Aldrin and Neil Armstrong on July 21, 1969, |