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College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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A suspension bridge oscillates with an effective force constant of 1.00 × 108 N/m . (a) How much energy is needed to make it oscillate with an amplitude of 0.100 m? (b) If soldiers march across the bridge with a cadence equal to the bridge’s natural frequency and impart 1.00 × 104 J of energy each second, how long does it take for the bridge’s oscillations to go from 0.100 m to 0.500 m amplitude.
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- A spider on a web oscillates horizontally with simple harmonic motion with an amplitude of 2.4 × 10-3 m and period of 0.42 s. (a) State at which point(s) in the oscillation the spider experiences a maximum magnitude of acceleration. (b) Find the maximum magnitude of acceleration that the spider experiences.arrow_forwardA simple harmonic oscillator is made from a spring connected to a mass on a frictionless surface. The oscillations have an amplitude of 15cm and a frequency of 0.25Hz . At which point during its oscillation does the oscillator have the most mechanical energy?arrow_forwardA 0.455 kg object connected to a light spring with a spring constant of 19.0 N/m oscillates on a frictionless horizontal surface. (a) Calculate the total energy of the system and the maximum speed of the object if the amplitude of the motion is 3.00 cm. E = J vmax = m/s (b) What is the velocity of the object when the displacement is 2.00 cm?± m/s(c) Compute the kinetic and potential energies of the system when the displacement is 2.00 cm. KE = J PEs = Jarrow_forward
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