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A person is riding a bicycle, and its wheels have an angular velocity of 11.5 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 13.3 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?
Calculate your apparent weight at the top and bottom of a Ferris wheel, given that the radius of the wheel is R meters, it completes one revolution every T seconds
At what time does the bolt hit the top of the still-decending elevator.
A 1.4kg grindstone in the shape of a uniform cylinder of radius 0.2m acquires a rotational rate of 1800 rev/s from rest over a 6.0 s interval at constant angular acceleration
a 50 kg trunk is pushed 6 m along a level floor at a constant speed of 4.2m/s.if the coefficient of friction is 0.20, calculate the work done by the applied force
A horizontal block-spring system with the block on a frictionless surface has total mechanical energy E = 39.1 J, What is the kinetic energy of the system at the equilibrium point
You are 3.20 m from a plane mirror, holding a camera, and you want to take a photograph of your image in the mirror. find To what distance should the camera be focused
a grindstone has a radius of 6.00 cm and rotates at 7000 rpm. What is the linear speed of a point on its edge
A hydrogen atom in the n= 2 state absorbs a photon with wavelength 486nm. Find the change in the orbiting electron's kinetic energy
A roller coaster shown below is built in your town. The radius of the circular part is 20 meters. As a physics student, you are invited to take the first ride. Find the speed of the car at the top of the circle
Suppose a lake has a layer of ice 11 cm thick on its surface. The top of the ice layer is cooled by the atmosphere to -5.25° C. At what rate is heat transferred through a 1.5 cm2 area of the ice
What is the electric potential energy of the system.
An AC voltage of the form ?v = 100 sin 1 000t, where ?v is in volts and t is in seconds, is applied to a series RLC circuit. Find the average power delivered to the circuit
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