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A motor spins a disk (Idisk = 25.1 kg*m2) with a torque of 40 N*m, and a 18 N frictional force acts on the disk at a radius of 1.5 m. Attached to the disk at a radius of 2.6 m is a 17 kg mass. What is the magnitude of the angular acceleration in rad/s2 of the system?
a cargo plane is moving with a horizontal velocity of v=+220 m/s at a height of y=970m above level ground, how much time will it take the package to reach the ground
in many locations such as lake washington in seattle floating bridges are preferable to conventional bridges. such a
An uncharged capacitor is connected to the terminals of a 4 battery, and 12 flows to the positive plate. The 4 battery is then disconnected and replaced with a 7 battery, with the positive and negative terminals connected in the same manner as bef..
a curve in a road has a banking angle calculated and posted for 80km/h The road is covered with ice so you drive slower than this limit What may happen to your car
A train is traveling at 360 ft/s. The engineer applies the brakes because he sees The Tumbler stuck on the tracks ahead. How long does it take the train to reach The Tumbler
If you write your solution in the complex form of Section 2.7, then you can transform back to the nonrotating frame by multiplying by a suitable rotating complex number.
An object of mass 5.0 kg is attached to a string of length 2.0 m and rotating in a horizontal circle with an angular velocity of 3.0 rad/s
Water flows out of a large open reservoir through a small pipe that opens to the atmosphere 30 m below the level of the water in the reservoir.
A ball is rolling down a ramp. When it passes a particular point, you determine that the ball is traveling at an angular speed of 12.0 rad/s, Determine the magnitude of the balls angular acceleration
For a spherical celestial object of radius R, the acceleration due to gravity g at a distance x from the center of the object is g = g0R2/x2, where g0 is the acceleration due to gravity at the object's surface and x > R. For the moon, take g0 = 1.63 ..
1) List five functions of hydraulic fluids. 2) How much can petroleum-based fluids compress at 3,000 psi? 3) Define lubricity of a fluid.
A ball of mass 0.140 kilogram is dropped from rest from a height of 1.25 meter. Find what impulse was given to the ball by the floor
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