Name: Suspended Spring Supports Mast A spring has a length Z, when it is suspended with no mass attached and a length L, when a
Name: Suspended Spring Supports Mast A spring has a length Z, when it is suspended with no mass attached and a length L, when a mass m is attached. Assume that the mass of the spring does not affect the calculations. (The dingram is pol to scale. ) losed Pipe conance Rest position of mass suspend on the spring Rest position of spring with no mass attached Tuning It 4. Refer to the diagram Suspended Spring Supports Mass to answer this question. A 5.20-kg mass is suspended from a spring that has a spring constant of 4.85 x 10' N/m. The mass is relea and, after a little while, comes to rest below the point at which the spring is suspended. How far has the spring been stretched from its position at which the restoring force is zero? a. 13.2 cm b. 15.1 cm C. 10.5 cm d. 12.6 cm 5. A 3.92-kg pendulum bob is attached to a 4.50-m-long string. The pendulum is pulled sideways until th makes an angle of 18.5" with the vertical. What is the restoring force acting on the pendulum? a. 3.89 N C. 3.74 N b. 12.2 N d. 12.7N 6. Which of the following factors affect the period of a pendulum? I. the length of the string supporting the bob II. the mass of the bob III. the acceleration due to gravity in the region of the pendulum a. I and III C. I, II, and III b. I and II d. II and III 7. Which of the following is an example of mechanical resonance? a. A pendulum gradually loses amplitude. b. A tree branch oscillates in the wind. C. A mass suspended on a spring is pulled down and released. d. A bell ringer pulls on a bell rope to keep the bell ringing
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