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A turbine in an electric power plant rotates at 3600 rpm. Discover its angular speed in radians/second, and decide the linear speed of a point 72cm from the axis of rotation. The power plant shuts down, and the turbine coast to a halt in 590s. If the angular acceleration is constant, how many revolutions does the turbine make through this time?
A coin is placed on a turntable 13 cm from the center. A lump of clay placed behind the coin prevents it from sliding backwards , How long will it take before the coin begins to slide radially
The weight of your 1205-kg car is supported equally by its four tires, What gauge pressure is required to give an area of contact of 112 cm2 for each tire
Two loudspeakers emit sound waves along the x-axis. The sound has maximum intensity when the speakers are 17apart. The sound intensity decreases as the distance between the speakers is increased, reaching zero at a separation of 57.
The waves from a radio station can reach a home receiver by two dissimilar paths. One is a straight-line path from the transmitter to the home, a distance of 28.0 km. The second path is with reflection from a storm cloud.
A car driving at 33 m/s is approaching a stoplight. As the stoplight turns red, the driver decides that the car is going too fast to stop at the white line and hits the brakes hard. How fast was the car going when the driver changed the rate of dec..
A 55 kg block of ice slides down a frictionless ramp that is 2.0 m long and 0.91 m high. Find the force exerted by the worker
To hoist himself into a tree, a 72.0-kg man ties one end of anylon rope around his waist and throws the other end over a branchof the tree. determine the man's upward acceleration
A speedboat starts from rest and accelerates at +2.15m/s2 for 8.35 s. At the end of this time, the boatcontinues for an additional 8.62 s with an acceleration of +0.629m/s2.
An electron accelerated from rest through a voltage of 550 V enters a region of constant magnetic field. If the electron follows a circular path with a radius of 18 cm, what is the magnitude of the magnetic field?
Answers for an elevator are moving down with an acceleration of 3.360 m/s. what would be the apparent weight of a 64.20 kg man in the elevator.
a 3.7 kg box of running shoes slides on a horizontal frictionless table and collides with a 2.4 kg box of ballet slippers initially at rest on the edge of the table, at height h = 0.33 m. what is their kinetic energy just before they strike the flo..
Two coils of wire are placed close together. Initially, a current of 2.3 A exists in one of the coils, What is the mutual inductance of the two-coil system
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