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Compute the torque developed by an industrial motor whoseoutput is 175 {\rm kW} at an angular speed of 4000 {\rm rev}/{\rm min}.
A drum with negligible mass and 0.600 {\rm m} in diameter is attached to the motor shaft, and thepower output of the motor is used to raise a weight hanging from arope wrapped around the drum. How heavy a weight can the motor liftat constant speed?
At what constant speed will the weight rise?
a cameraman on a pickup truck is traveling westward at 22 kmh while he videotapes a cheetah that is moving westward 29
You desire to observe details of the Statue of Freedom, the sculpture by Thomas Crawford that is the crowning feature of the dome of the United States Capitol in Washington D.C. what focal length should the eyepiece have
A hollow sphere of radius 0.35 m, with rotational inertia I = 0.032 kg m2 about a line through its center of mass, How much of this initial kinetic energy is rotational
A long straight conducting rod (orwire) carries a linear charge densityλof +2.0μC/m. This rod is totally enclosed within a thincylindrical shell of radius R, which carries alinear charge density of - 2.0μC/m.
A hunter aims directly at a target (on the same level) 84.2m. If the bullet leaves the gun at a speed of 193 m/s, by how much will it miss the target.
A mass of 6.70 kg is suspended from a 1.15 m long string. It revolves in a horizontal circle, Calculate the angle between the string and the vertical
A 9.0-kg box of oranges slides from rest down a frictionless incline from a height of 5.0 m, What is the coefficient of kinetic friction, µk, of the surface from A to B
If the pressure of the 1.2-cm3 volume is reduced to 3.0 × 10?11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container
By means of a rope whose mass is negligible, two blocks are suspended over a pulley, find the mass of the pulley
a lamp emits lights x and y of different frequencies the frequency of x is 6.25times1014. light from the lamp is
As you zip through space in your PPS (personal propulsion suit), your pulse rate, as you count it, is 117 bpm, How fast are you moving with respect to the Moon
A freezer is used to freeze 2.0 L of water completely into ice. The water and the freezer remain at a constant temperature of T = 0 C, Determine the change in the entropy of the freezer
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