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A person is riding a bicycle, and its wheels have an angular velocity of 16.1 rad/s. Then, the brakes are applied and the bike is brought to a uniform stop. During braking, the angular displacement of each wheel is 18.4 revolutions. (a) How much time does it take for the bike to come to rest? (b) What is the anguar acceleration (in rad/s2) of each wheel?
The electric field points radially outward at all points within the sphere (and outside too, for that matter). What is the strength of the electric field at a distance r from the center, inside sphere.
the shock absorbers in the suspension system of a car are in such bad shape that they have no effect on the behavior of
Two spheres of mass m and a third sphere of mass M form an equilateral triangle, and a fourth sphere of mass mB is at center of the triangle.
A pendulum consists of a 3.8 kg stone swinging on a 3.6 m string ofnegligible mass. The stone has a speed of 9.4 m/s when it passesits lowest point. (a) What is the speed when the string is at 64° to the vertical? (
A 1.30 m long ramp is inclined at 14 degrees to the horizontal. A solid ball is released from rest at the top of the ramp. Find the ball's speed at the bottom of the ramp
A bowling ball of mass 7.10kg and radius 9.20cm rolls without slipping down a lane at 3.64m/s. Calculate its total kinetic energy
Consider the system shown in the figure. The mass of the bucket and liquid is 1.10 kg, and the mass of the ball is 0.150 kg. Find the reading on the scale after the string breaks
A3.50kg object is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of24.0N is required to hold the object at rest when it is pulled 0.200 m from its equilibrium position.
an electron starts from rest 5.00 cm from the center of a uniformly charged sphere of radius 4.00 cm. if the sphere
nitrogen gas in an expandable container is cooled from 50.0degc to 10.0degc with the pressure held constant at 3.00 x
Electrons are ejected from a metallic surface with speeds ranging up to 4.5 105 m/s when light with a wavelength of ? = 625 nm is used. What is the work function of the surface
A ball of mass m, at one end of a string of length L, rotates in avertical circle just fast enough to prevent the string from going slack at the top of the circle. The speed of the ball at the bottom of the circle is:
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