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### Video Transcript

Let's say we have Here are and here is the moon. So the distance from the center off the earth to center off the moon he's given and that this distance is, um was fall it X, which is 375 884500 meter and the lesser troubles from art. And it bounces off the mirror and comes back. So it traveled the distance off. Let's go. D Ridge is a two times off X. Then, um, the speed off a light will be simply a distance traveled, which is the D divided by time, which is 2.5 seconds. So some student value for the accent Newman finally to weaken the d. From there, we get the velocity that is three times into power Pete Meter for a second.

Wesleyan University