What time interval should the gyroscope be operated

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Q. A spacecraft is in empty space. It carries on board a gyroscope with a moment of inertia of Ig = 23.0 kg · m2 about the axis of the gyroscope. The moment of inertia of the spacecraft around the same axis is Is = 5.00 105 kg · m2. Neither the spacecraft nor the gyroscope is originally rotating. The gyroscope can be powered up in a negligible period of time to an angular speed of 135 rad/s. If the orientation of the spacecraft is to be changed by 20.0°, for what time interval should the gyroscope be operated?

Q. Two weights are connected by a very light flexible cord that passes over a 30.0- frictionless pulley of radius 0.100 . The pulley is a solid uniform disk and is supported by a hook connected to the ceiling. One weight is 75.0 N and the other is 125 N.

What force does the ceiling exert on the block?

Reference no: EM1350581

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What time interval should the gyroscope be operated : Two weights are connected by a very light flexible cord that passes over a 30 frictionless pulley of radius 0.100. The pulley is a solid uniform disk and is supported by a hook connected to the ceiling. One weight is 75N and the other is 125 N.

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