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A small rubber wheel on the shaft of a bicycle generator presses against the bike tire and turns the coil of the generator at an angular speed that is 42 times as great as the angular speed of the tire itself. Every tire has a radius of 0.306 m. The coil consists of 129 turns, has an area of 3.53 10-3 m2, and rotates in a 0.0810-T magnetic field. The bicycle starts from rest and has an acceleration of +0.525 m/s2. What is the peak emf produced with the generator at the end of 5.39 s?
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. People sit in seats facing the axis, their backs against the outer wall. At one instant the outer wall moves at a speed of 4.0 m/s, and an 83 kg p..
on a spacecraft two engines fire for a time of 565 s. one gives the craft an acceleration in the x direction of ax
a golfer tees off on level ground giving the ball an initial speed of 37.5 ms and an initial direction of 40.5deg above
A circular saw is powered by a motor. When the saw is used to cutwood, the wood exerts a torque of 0.80N · m on the saw blade. If the blade rotateswith a constant angular velocity of 20 rad/s the work done on the blade by the motor in 1.0 min is:
question you are given a 10-mh inductor and 2 capacitorsof 5.0 and 2.0-mf capacitance. list the resonant frequencies
Water is moving at a speed of 7.55 m/s through a fire hose with an internal diameter of 5.99 cm. What is the gauge pressure of water in the hose
A string of a violin is 32 cm long between fixed points with a fundamental frequency of 440 Hz and a mass per unit length of 7.2 x 10-4 kg/m. What are the wave speed and the tension in the string
two identical positive charges are placed 24 cm apart and the magnitude of the electric force between them is 5.3
A student drops two metallic objects into a 120 g steel container holding 150 g of water at 25°C. One object is a 230 g cube of copper that is initially at 85°C, and the other is a chunk of aluminium that is initially at 5.0°C. To the surprise of the..
A certain source of sound wavesradiates uniformly in all directions. What is the total acoustic powerout put of the source in watts
A 1000Hz sound travels through pure oxygen. The wavelength of the sound is measured to be 0.65m. What is the speed of oxygen?
While a magnet is moved toward the end of a solenoid, avoltage differnce is induced between the two ends of the solenoid wire. The volatage difference would be larger if
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