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A piano wire with mass 2.90g and length 82.0cm is stretched with a tension of 35.0N . A wave with frequency 100Hz and amplitude 1.90mm travels along the wire.
Part A Calculate the average power carried by the wave.
Part B What happens to the average power if the wave amplitude is halved?
On vacation, your 1350 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 2.15 m/s2. (a) What is the net force exerted on the trailer? (b) What force does the trailer exert on the car? (c) What is the net force acting on ..
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