Vibrations and Waves
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A “seconds” pendulum has a period of exactly 2.000 s—each
A “seconds” pendulum has a period of exactly 2.000 s—each one-way swing takes 1.000s. (a) What is the length of a second pendulum in Austin,...
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An earthquake P wave traveling at 8.0 km/s strikes a
An earthquake P wave traveling at 8.0 km/s strikes a boundary within the Earth between two kinds of material. If it approaches the boundary at an...
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An earthquake-produced surface wave can be approximated by a sin
An earthquake-produced surface wave can be approximated by a sinusoidal transverse wave. Assuming a frequency of 0.50 Hz (typical of earthquakes,...
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An elastic cord is 65 cm long when a weight
An elastic cord is 65 cm long when a weight of 75 N hangs from it but is 85 cm long when a weight of 180N hangs from it. What is the “spring”...
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An elastic cord vibrates with a frequency of 3.0Hz when
An elastic cord vibrates with a frequency of 3.0Hz when a mass of 0.60 kg is hung from it. What is its frequency if only 0.38 kg hangs from it?
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An energy-absorbing car bumper has a spring stiffness constant o
An energy-absorbing car bumper has a spring stiffness constant of 550 kN/m. Find the maximum compression of the bumper if the car, with mass 1500 kg,...
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An object with mass 3.0 kg is attached to a
An object with mass 3.0 kg is attached to a spring with spring stiffness constant k = 280N/m and is executing simple harmonic motion. When the object...
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At t = 0, a 755-g mass at rest on
At t = 0, a 755-g mass at rest on the end of a horizontal spring (k = 124 N/m) is struck by a hammer, which gives the mass an initial speed of...
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At what displacement from equilibrium is the energy of a
At what displacement from equilibrium is the energy of a SHO half KE and half PE?
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At what displacement from equilibrium is the speed of a
At what displacement from equilibrium is the speed of a SHO half the maximum value?
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