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. what percent correction is needed to account for the delay in time due to the slowing of light in earth’s atmosphere? assume the distance to the moon is precisely 3.84×108m and earth’s atmosphere (which varies in density with altitude) is equivalent to a layer 30.0 km thick with a constant index of refraction n=1.000293.

Choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. a 1.0 kg block is placed on top of a 2.0 kg block. a horizontal rope pulls the 2.0 kg block across a frictionless floor with a force of 21.0 n. the coefficient between the two blocks is 0.75. does the 1.0 kg block on top slide?