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A playground merry-go-round of radius R = 1.20 m has a moment of inertia I = 240 kg · m2 and is rotating at 11.0 rev/min about a frictionless vertical axle. Facing the axle, a 24.0-kg child hops onto the merry-go-round and manages to sit down on the edge. What is the new angular speed of the merry-go-round?
If the radius of the equipotential surface of a point charge is 21.0m and is at a potential of +3.50kv
After the box starts sliding, the person continues to push it, exerting the same force. What is the acceleration of the box
You're driving down the highway late one night at 17 {rm m}/{rm s} when a deer steps onto the road 45 {rm m} in front of you. Your reaction time before stepping on the brakes is 0.50 {rm s} and the maximum deceleration of your car is 12 {rm m/s^2}..
A 2.00 m tall basketball player wants to make a goal from 10.0 m from the basket. If he shoots the ball at a 45.0° angle, at what initial speed should he throw the basketball so that it goes through the hoop without striking the backboard.
Megan is sitting (at rest) at the top of a slide that is inclined 25o with respect to the horizontal. how much does the thermal energy of the system increase during Megan's trip down the slide
Interpretation of Distance-time Graph 1. Which car is ahead and by how much distance after 3 hours? 2. Which car stops moving after 3 hours?
the coyote accidentally runs off the edge of a cliff and plummets to the ground 30.0 m below. Illustrate what force does the ground exert on the coyote as he makes a coyote-shaped dent 0.420 m deep in the ground?
A skateboarder, with an initial speed of 5.0 m/s, rolls virtually friction free down a straight incline of length 19 m in 3.3 s. What is the angle of the incline
A 7.0 L volume of ideal neon gas (monatomic) is at a pressure of 4.3 atmospheres and a temperature of 400 K. determine the final pressure of the gas
During WWII some paratroopers landed in gliders instead of dropped by parachute. The gliders had no power of their own, Find the lift force provided by the glider's wings
A 1.02 liter flask contains a certain quantity of ideal gas at 315 K. Then an equal number of molecules of the same gas are added to the flask, after which the absolute pressure is 1.60 times its original value. What is a final temperature.
A mortar crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action.
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