Problem based on angle of incidence
Two plane mirrors are separated by 120°, as the drawing illustrates. If a ray strikes mirror M1 at a 65° angle of incidence, at what angle does it leave mirror M2?
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After falling from rest from a height of 33 m, a 0.55-kg ball rebounds upward, reaching a height of 23 m. If the contact between ball and ground lasted 2.1 ms, what average force was exerted on the ball?
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The crate shown in the figure lies on a plane tilted at an angle theta = 27{rm ^circ} to the horizontal, with mu_k = 0.15.Determine the acceleration of the crate as it slides down the plane.If the crate starts from rest 8.15 {rm m} up the plane fr
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