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Q. A 9.8-kg object oscillates at the end of a vertical spring that has the spring constant of 1.75 104 N/m. The effect of air resistance is represented by the damping coefficient b = 3.00 N•s/m.
(1) Calculate the frequency of the dampened oscillation.
(2) By what percentage does the amplitude of the oscillation decrease in each cycle?
(3) Find out the time interval that elapses while the energy of system drops to 4% of its initial value.
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