Answered: Resonance oscillation | bartleby

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A mass weighing 140 lbs (mass m= 4.375 in fps) is attached to the end of a spring that is stretched 4 in. by a force of 140 lbs.
A force Fo cos cot acts on the mass. At what frequency (in hertz) will resonance oscillations occur? Neglect damping.
Resonance oscillations will occur at Hz.
(Round to two decimal places as needed.)

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