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(a) A bungee jumper with mass 52.0 kg reaches a speed of 13.5 m/s moving straight down when the elastic cord tied to her feet starts pulling her back up. After 0.0250 s, the jumper is heading back up at a speed of 10.7 m/s. What is the average force that the bungee cord exerts on the jumper?
(b) What is the average number of g's that the jumper experiences during this direction change?
on a hot summer day(30 degrees celsius),a pesky little mosquito produced its warning sound near your ear. what is the frequency in hertz of the sound wave
A vertical scale on a spring balance reads from 0 to 185N . The scale has a length of 13.0cm from the 0 to 185N reading. what is the mass of the fish
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A flat coil enclosing an area of 0.10 m2 is rotating at 65 rev/s, what is the maximum voltage induced in the coil
To estimate the size of the moon, a person holds a round pencil of diameter 0.70 cm. When the pencil is 77 cm in front of his eye, What is the angle subtended by the moon
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