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Question1

Calculate approximately the average power of a water wave when it hits chest of an adult standing in the water at the seashore. Suppose that the amplitude of the wave is 0.60m, the wavelength is 2.6m, and the period is 3.0s. Assume that the area of the chest is 0.18m2.

Question2

Two identical point charges of q=+1.75 x10-8 C are unconnected by a distance of 1.00 m. What is least amount of work required by an external force to go them closer together so that they are only 0.25 m apart?

Question3

A conductor is created into a loop that encloses an area of 1.0 m2. The loop is oriented at a 30.0° angle with xy-plane. A varying magnetic field is oriented parallel to the z-axis. If the utmost emf induced in the loop is 19.0 V, what is most rates at which the magnetic field strength is changing?

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  • Category:- Physics
  • Reference No.:- M9719546

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