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4.0 22 0.30 0.05 0.06

A mass m = 2.0 kg is attached to a spring having a force constant k = 990 N/m as in the figure. The mass is displaced from its equilibrium position and released. Its frequency of oscillation (in Hz) is approximately _____ . Select the correct answer. 4.0 22 0.30 0.05 0.06.

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4.0 22 0.30 0.05 0.06

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  1. A mass m = 2.0 kg is attached to a spring having a force constant k = 990 N/m as in the figure. The mass is displaced from its equilibrium position and released. Its frequency of oscillation (in Hz) is approximately _____ . Select the correct answer. • 4.0 • 22 • 0.30 • 0.05 • 0.06

  2. Two circus clowns (each having a mass of 52 kg) swing on two flying trapezes (negligible mass, length 25 m) shown in the figure. At the peak of the swing, one grabs the other, and the two swing back to one platform. The time for the forward and return motion is _____ . Select the correct answer. • 10 s • 12 s • 14 s • 16 s • 18 s

  3. A uniform rod (mass m = 3kg and length L = 2m) pivoted at one end oscillates in a vertical plane as shown below. The period of oscillation is approximately _____ s. Select the correct answer. • 2.3 • 2.1 • 2.8 • 3.0 • 3.2

  4. The mass in the figure slides on a frictionless surface. If m = 4 kg, k1 = 700 N/m and k2 = 500 N/m, the frequency of oscillation (in Hz) is approximately _____ . Select the correct answer. • 3 • 4 • 5 • 1 • 17

  5. In the figure below, a disk (radius R = 5.0m. mass = 7.0 kg) is suspended from a pivot a distance d = 1.25 m above its center of mass. The angular frequency (in rad/s) for small oscillations is approximately _____ . Select the correct answer. • 0.93 • 0.75 • 0.56 • 1.5 • 0.19

  6. A torsional pendulum consists of a solid disk (mass = 2.0 kg, radius = 1.0 m) suspended by a wire attached to a rigid support. The body oscillates about the support wire. If the torsion constant is 36 N·m, what is the angular frequency (in rad/s)? Select the correct answer. • 6 • 5 • 4 • 3 • 10

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