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At the local swimming hole, a favorite trick is to run horizontally off a cliff that is 6.2 meter above the water. One diver runs off the edge of the cliff, tucks into a ball, and rotates on the way down with an average angular speed of 2.0 rev/s. Ignore air resistance and calculates the number of revolutions she makes while on the way down.
rev
The kinetic friction of one metal object sliding along anothermetal surface depends lease upon:
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
In a physics lab experiment, a student immersed 207 one-cent coins (each having a mass of 3.00 g ) in boiling water. What was the final temperature of the coins
A model rocket is fired upward. The rocket's average initial acceleration is 38.5 m/s2 until the fuel burns out in 0.825 s. How high does the rocket go
A transformer has 3,840 turns in the secondary. Calculate the output voltage and the number of the number ofturns of the primary
a bright object and a viewing screen are separated by a distance of 79.4 cm. at what locations between the object and
A fully loaded station wagon has a mass of 1690 kg. If each of its four tires is inflated to a gauge pressure of 211 kPa, what is the total tire area in contact with road.
A train is rounding a circular curve whose radius is 2.00 102 m. At one instant, the train has an angular acceleration of 1.50 10-3 rad/s2 and an angular speed of 0.0200 rad/s
a student calculates the unknown liquid to have a density of 0.87 gcm3. if the class average for the density of the
a blue car pulls away from a red stop-light just after it has turned green with a constant acceleration of 0.4 ms2. a
Suppose that protons are fired towards the large flat side of a charged conducting plate. How long does it take for the particles to hit the plate
Compare the magnitudes of the gravitational force of attraction and the electric force of attraction between the electron, Find the ratio of the electric force to the gravitational force
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