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1) Two disks are mounted on frictionless bearings on the same axle and can be brought together so that they couple and rotate as one unit. The first disk, with rotational inertia 3.8 kg·m2 is set spining at 500.0 rpm. The second disk, with rotational inertia 5.9 kg·m2, is set spinning at 580 rpm. Then they are coupled together in an inelastic collision. What is their angular speed in radians per second after coupling?
2) If instead the second disk is set spinning at 580 rpm in the direction opposite the first disk's rotation, what is the angular speed after coupling?
At a soft drink dispenser, a restaurant patron put 0.2 kg of crushed water ice, at a temperature of ?5 C, into an insulating cup. [In fact, the ice was slightly colder before it left the machine, but its warming to ?5 C cooled the inside surface o..
Race tracks use walls which will compress when a car hits them at a high rate of speed. Find the spring constant of the wall
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the planet mars requires 2.35 years to orbit the sun which has a mass of 2 times 1030 kg in an almost circular
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A large parallel plate capacitor has plate separation of 1.01 cm and plate area of 231 cm2. How much work is done on the capacitor as the plate separation is increased to 2.02 cm
A 5.00*10^-4 C charged mass (1.00g) is thrown upwards at a speed of 20.0 m/s and it is observed that it has gone up a distance of 15m it is moving at only 10.0 m/s, what is the electric potential at 15 m up
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