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A penny is located 14.5 centimeter from the center of a turntable. When the speed of the turntable is slowly increased, the penny remains fixed on the turntable until a rate of 33 rpm is reached, at which point the penny slides off. Find coefficient of static friction between penny and turntable?
a puck with a mass of .113 kg is spun clockwise around a center. its original distance from the center of rotation is
a long wire carrying a 4.0a current perpendicular to the xy -plane intersects the x -axis at x -2.3cm. a second
A motorcycle has a constant speed of 21.0 m/s as it passes over the top of a hill whose radius of curvature is 132 m. The mass of the motorcycle and driver is 343 kg. Determine the magnitude of the normal force that acts on the cycle.
A possible spacecraft design uses a solar sail made of aluminized plastic. As sunlight reflects off the sail, radiation pressure drives the spacecraft outward away from the sun. what is its acceleration at the radius of the Earth's orbit
a charged particle is injected at 215 ms into a 0.0897-t uniform magnetic magnetic field perpendicularly to the field.
a 2.0microf capacitor and a 4.0microf capacitor are connected in series across 1000 v. the charged capacitors are then
A person pulls a toboggan for a distance of 27.5 m along the snow with a rope directed 26.2 ° above the snow. The tension in the rope is 92.3 N. How much work is done on the toboggan by the tension force
A Carnot heat engine has a thermal efficiency of 0.615, and the temperature of its hot reservoir is 775 K. If 2375 J of heat is rejected to the cold reservoir in one cycle, what is the work output of the engine during one cycle?
a bicyclist of mass 54 kg puts all his weight on each downward-moving pedal as he pedals up a steep road. determine the magnitude of the maximum torque he exterts in the process
A butterfly flies from the top of a tree in the center of a garden to rest on top of a flower at the garden's edge. Determine the magnitude of the butterfly's displacement
in a velocity selector the uniform magnetic field of 1.5 t is produced by a large magnet. two parallel plates with a
A small package rests on the horizontal dashboard of a car. If ?s = 0.275, what is the minimum acceleration of the car that will cause the package to slip off
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