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Albert Einstein is standing on thet left end of a 8m long, 20kg rod. The right end of the rod is attached to the outside of a wall of a building. A cable is attached to the rod at 2m away from Albert at an angle of 25 degrees from the horizontal. Albert Einstein's weight is 600N.
A.) Draw a rigid body free body diagram for the rod.
B.) In what vertical direction doe sthe wall push on the rod? Explain and use calculations to support your answer.
C.) What is the size of the veritcal force that the wall exerts on the rod?
A bat at rest sends out ultrasonic sound waves at 50.5 kHz and receives them returned from an object moving directly away from it at 30.5 m/s
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