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A wheel with a moment of inertia of 20 kg m2 initially rotates freely with an angular velocity of 10 rad/s. A pad is applied to the outer surface to stop it. If it takes 10 seconds to stop, what is the torque due to friction?
Charged particles round a 1.7 km radius circular particle accelerator at nearly the speed of light. Find the centripetal acceleration of the charged particles
A bowling ball (mass = 7.2 kg, radius = 0.10 m) and a billiard ball (mass = 0.42 kg, radius = 0.028 m) may each be treated asuniform spheres. What is the magnitude of the maximum gravitational force that each can exert on the other?
A 1000kg car coasting at 72.0km/h on a level frictionless road comes to a 15 degree incline. Calculate how far the car will travel before coming to rest
A cube is floating in a lake. IT is observed that 0.4 m of the cube is underwater with the remaining 0.1 m above. The density of water is 1000 kg/m^3. what is the magnitude of the foce that is exerted
During a heavy rain, the drops are falling at a constant velocity and at an angle of 9.5° west of the vertical. What is your walking speed if the speed of the drops relative to the ground is 4.6 m/s
A 50 kg skater pushes off horizontally for a distance of 0.4m witha force of 150N. If she travels 80m before stopping, what is the coefficient of friction
A neon atom (m = 20.0 u) makes a perfectly elastic collision with another atom at rest. What is the mass of the unknown atom
What is the pitcher's power output during the pitch and How much work does the pitcher do on the ball
A boat takes 3.20 hours to travel 30.0 km down a river, then 6.80hours to return. How fast is the river flowing
The first star on the handle of the Big Dipper and the star that forms the far bottom edge of the bowl(Merak).
Nitrogen in a container (molar mass is 28 g/ mol) has a pressure of 2.59 atm, a volume of 0.200 m3 and a temperature of 30 degrees. What is the mass of the nitrogen
the arm of a car windshield wiper is 12.75 in long and its attached at the middle of a 15.00 in blade. assume that the
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