A 38.00 kg girl is bouncing on a trampoline. all throughout, Ask an Expert

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Q. How would the photographer use the polarizing filter to find out the direction of polarization of the light coming from the blue sky? Her only reference is the polarization axis of the filter.

Q. A 38.00 kg girl is bouncing on a trampoline. All throughout a certain interval after she leaves the surface of trampoline, her kinetic energy decreases to 185J from 425J. How high does she rise all through this interval? Avoid air resistance.

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