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A computer disk drive is turned on starting from rest and has constant angular acceleration. It took 0.944 second for the drive to make its second complete revolution.
(a) Find how long did it take to make the first complete revolution?
s
(b) Determine what is its angular acceleration?
rad/s2
A 19.8-g piece of Styrofoam carries a net charge of -0.646 µC and is suspended in equilibrium above the center of a large, What is the charge per unit area on the plastic sheet
A 1,8000-kg SUV rounds a flay (unbanked) curve with a radius of 90m. the average coefficients of kinetic and static friction between the tire of the car and the road are static coefficient = 0.85, What is the maximun driving speed for the car
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A barge is 15.0 m wide and 75.0 m long and has vertical sides. The bottom of the hull is 1.20 m below the water surface. What is the weight of the barge
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a ball is thrown straight upward and rises to a maximum height of 12.0m above its launch point. at what height above
The back wall of a home aquarium is a mirror that is a distance of 33.0 cm away from the front wall. The walls of the tank are negligibly thin, Calculate the apparent distance between the fish and the front wall
A 52.1-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.589 and 0.312, respectively. What horizontal pushing force is required to (a) just start the crate moving and (b) slide the crate across ..
Two friends hold on to a rope, one at each end, on a smooth, frictionless ice surface. What is the magnitude of the angular momentum of the system comprised of the two friends
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The driver of a 1350 kg car, initially traveling at 12.1 m/s, applies the brakes, bringing the car to rest in a distance of 19.5 m. Find the net work done on the car
A 1055 kg van, stopped at a traffic light, is hit directly in the rear by a 735 kg car traveling with a velocity of +2.25 m/s. What is the final velocity of each vehicle
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