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When responding to sound, the human eardrum vibrates about its equilibrium position. Suppose an eardrum is vibrating with an amplitude of 6.9 x10-7 m and a maximum speed of 3.9 x10-3 m/s.
(a) What is the frequency (in Hz) of the eardrum's vibrations?
(b) What is the maximum acceleration of the eardrum?
A tennis player places a 40 kg ball machine on a frictionless surface, as shown below. The machine fires a 0.052 kg tennis ball horizontally with a velocity of 30.6 m/s toward the north. What will be the final velocity of the machine.
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What is the decibel level required for human perception
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An Olympic basketball player shoots towards a basket that is 5.36m horizontally from her and 3.05m above the floor. The ball leaves her hand 1.83m above the floor at an angle of 45.0o above the horizontal. What initial speed must she give the ball so..
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