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A wheel free to rotate about its axis that is not frictionless is initially at rest. A constant external torque of +47 N·m is applied to the wheel for 15 s, giving the wheel an angular velocity of +510 rev/min. The external torque is then removed, and the wheel comes to rest 120 s later. (Include the sign in your answers.)
(a) Find the moment of inertia of the wheel.
(b) Find the frictional torque, which is assumed to be constant.
Determine the new planets mass density to earth mass density
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A 3.0 syringe has an inner diameter of 5.0, a needle inner diameter of 0.28, and the plunger pad diameter (where you place your finger) of 1.20.
Passengers riding in the Great Six Flags Air Racer are spun around a tall steel tower. At top speed the planes fly at a 59.0 o bank approximately 12.0 m from the tower, Calculate the speed of the planes
What is an average power output of the laser. What is the rms value of the electric field in the beam.
If the orientation of the spacecraft is to be changed by 30.0°, for what time interval must the gyroscope be operated.
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