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A 11.2 kg object oscillates at the end of a vertical spring that has a spring constant of 1.90 104 N/m. The effect of air resistance is represented by the damping coefficient b = 3.00 N·s/m.
(a) Calculate the frequency of the dampened oscillation.
(b) By what percentage does the amplitude of the oscillation decrease in each cycle?
(c) Find the time interval that elapses while the energy of the system drops to 3.00% of its initial value.
An airplane with a speed of 92.2 m/s is climbing upward at an angle of 37.7 ° with respect to the horizontal. determine the angle of the velocity vector of the package
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The spacecraft's mass is 291 kg and the thrust (force) of the rocket engines is 59 N. If the speed of the spacecraft should be decreased by 128 m/s, how long the engines should be fired. (Ignore the change in mass as a result of the rocket engines..
Someone points out that a ball, if released from rest on a hill, will roll down the hill with increasing momentum. explain the Law of Conservation of Linear Momentum
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