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A solid, horizontal cylinder of mass 8.0 kg and radius 1.30 m rotates with an angular speed of 6.50 rad/s about a fixed vertical axis through its center. A 0.250-kg piece of putty is dropped vertically onto the cylinder at a point 0.900 m from the center of rotation and sticks to the cylinder. Determine the final angular speed of the system. rad/s
A plastic rod is rubbed against a wool shirt, thereby acquiring a charge of -0.4 µC. How many electrons are transferred from the wool shirt to the plastic rod
You're an optometrist, mounting a projector at the back of your 3.8m -long exam room, 2.6m above the floor. At what height should you center the pattern on the wall
Block A has mass 1.20 kg and Block B has mass 2.9 kg. They are forced together, compressing spring S between them how much potential energy was stored in the compressed spring
If a lab student determines the coeffient of linear expansion of aluminum is 26.4 x 10-6, what is that student's percent error for the experiment
The position of an object connected to a spring varies with time according to the expression x = (5.4 cm) sin(9.3?t). Find the frequency of the motion
There is evidence that elephants communicate via infrasound, Determine the intensity level of the infrasound 10 km from the source, assuming the sound energy radiates uniformly in all directions
The centripetal and tangential accelerations are equal
A 200g hockey puck is launched up a metal ramp that is inclined at a 30° angle. What speed does the puck have when it slides back down to its starting point
The drag coefficient, D, for a spherical raindrop with a radius of 0.445cm falling at its terminal velocity is 1.74×10?5kg/m. Calculate the raindrop's terminal velocity in \rm m/s
find the acceleration of the bolt relative to the train car
How do you measure the mass of an astronaut in orbit? (You can't just use a scale!) For the Skylab program, What is the mass of the astronaut
a 2 kg softball is pitched to you at 20 m/s. you hit the ball back along the same path and at the same speed. if the bat was in contact with the ball for .1 seconds, what is the magnitude of the average force the bat exerted
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