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A 0.5 kg mass attached to a linear spring, with spring constant 5 N/m and damping constant 0.2 kg/s, is initially displaced 10 cm from equilibrium.
(a) What is the natural frequency of oscillation?
(b) What is its period of oscillation?
(c) How long does it take for the amplitude to decrease to 10% of its starting value?
(d) How many oscillations have occurred in this time?
(e) What fraction of the initial energy remains after this time?Please show all work necessary.
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The velocity of a ball changes from m/s to m/s in 0.02 s, due to the gravitational attraction of the Earth and to air resistance. What is the rate of change of momentum of the ball
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A truck travels beneath an airplane that is moving 190 km/h at an angle of 26? to the ground.
Find out the rotational inertia of this object (a) about an axis through the center of the triangle and perpendicular to its plane (b) and about an axis that passes through one vertex and the midpoint of the opposite side.
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