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A uniform spherical shell of mass M = 2.5 kg and radius R= 18.0 cm rotates about a vertical axis on frictionless bearings. A mass less cord passes around the equator of the shell, over a pulley of rotational inertia I = 3.63×10-3kg m2 and radius r = 5.0 cm, and its attached to a small object of mass m = 1.0 kg. There is no friction on the pulley's axle; the cord does not slip on the pulley. What is the speed of the object after it has fallen a distance h = 1.4 m from rest: Utilize work energy considerations.
When 1250 J of heat are added to one mole ofan ideal monatomic gas, its temperature increases from 272 K to 275K. Find the work done by the gas during this process
Two identical particles, each with a mass of 4.5 mg and a charge of 30 nC, are moving directly toward each other with equal speeds of 4.0 at an instant, How far apart will they be when closest to one another
An oscillating block - spring system has a mechanical energy of 1.70 J, and amplitude of 10.0 cm, and a maximum speed of 1.1 m/s. A) Find the spring constant. B)Find the mass of the block. C) Find the frequency of oscillation. (three questions)
a speeder passes a parked police car at a constant speed of 21.1 ms. at that instant the police car starts from rest
An electric clock is hanging on the wall in the living room. what is the direction of the angular acceleration of the second hand
A weight of 45.0 N is suspended from a spring that has a force constant of 180 N/m. Determine the maximum value of the driving force
A tennis ball of mass m = 0.060 kg and speed v = 25 m/s strikes a wall at a 45-degree angle. It rebounds with the similar speed, once again at a 45-degree angle. What is the magnitude of the momentum impulse (in Ns) that the ball gave the wall?
If you lift the front wheel of a poorly maintained bicycle off the ground, If the moment of inertia of the wheel about its axle is 0.30 , what is the magnitude of the frictional torque
A grinder consists of a solid 15 kg disk with a diameter of 57 cm. A when active, the disk rotates at a rate of 83 rad/sec. find the rate of angular acceleration of the disk
A uniform rod of mass 3.05×10?2kg and length 0.410mrotates in a horizontal plane about a fixed axis through its center and perpendicular to the rod. What is the angular speed of the rod after the rings leave it
The equations below are approximations of the magnitude of theelectric field of an electric dipole, at points along the dipoleaxis. Consider a point P on that axis at distancez = 39.00d from the dipole center.
A 10.0kg box having an initial speed of 3.0m/s slides along a rough table and comes to rest. Estimate the total change in entorpy of the universe. Assume all objects are at room temperature (293K)
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