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Question1

Two window washers Bob and Joe are on a 3.00 m long, 380 N scaffold supported by two cables attached to its ends. Bob weighs 845 N and stands 1.00 m from left end. Two meters from the left end is 500 N washing equipment? Joe is 0.500 m from the right end and weighs 900 N. particular that the scaffold is in rotational and translational equilibrium, what are the forces on each cable?


Question2

A minivan moving at 38 m s passes an unmarked state police car moving at 24 m s. The electromagnetic waves produced by radar gun equation frequency of 8.25 X 10^9 Hz. What is magnitude of the difference in frequency between waves emitted by gun and those that are reflected back by the car?

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  • Category:- Physics
  • Reference No.:- M9720403

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