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The wheel of a bicycle have an angular velocity of +20.0 rad/s. Then, the brakes are applied. In coming to rest, each wheel makes an angular displacement of +15.92 revolutions. (A) How much time does it take for the bike to come to rest? (B) What is the angular acceleration (in rad/s^2) of each wheel?
in the deep ocean a water wave with wavelength 95 m travels at 12 ms. suppose a small boat is at the crest of this wave
An airplane is flying in a horizontal circle at a speed of 100 m/s. The 80.0-kg pilot does not want her radial acceleration to exceed 7g. (a) What is the least radius of the circular path? (b) At this radius, what is the force causing the centripe..
A hospital's linear accelerator produces electron beams for cancer treatment. The accelerator is 1.4m long and the electrons reach a speed of 0.98c.
On a frictionless air track, a 0.140 kg glider moving at 1.35 m/s to the right collides with and sticks to a stationary 0.245 kg glider. What must be the net momentum of this system after the collision
select the quantity that has changed(velocity or speed) for a car that travels north at 88 km/h and then turns east while continuing to move at 88 km/h. define your answer.
a wire has a current density of 18 amm2. if the drift velocity is 5.0times10-8 ms how many free electrons does the
A 5.00 g bullet is fired into a 500g block of wood suspended as a ballistic pendulum. What was the magnitude of the momentum of the combined mass immediately after the collision
q1. the wind blows with a force of 425n north on a sail boat while the water exerts a force of 325n west on the
A water pipe is inclined 32.0° below the horizontal. The radius of the pipe at the upper end is 3.00 cm. If the gauge pressure at a point at the upper end is 0.117 atm, what is the gauge pressure at a point 2.65 m downstream, where the pipe has narro..
Starting from rest, a 12 cm diameter compact disk takes 2.4 s to reach its operating angular velocity of 2030 rpm. How much torque is applied to the disk
A pot containing 1.07 liter of water, initially at 23°C, is placed on a 1071 W electric heating element. How much heat is necessary to boil all the water away
question suppose a car is traveling along a straight road at 40 mph. the car then brakes to a stop. does this violate
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