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A skier moving at 20 m/s down a 30.0 degree slope encounters a region of wet snow, with a coefficient of friction u= .740. How far down the slop does he go before stopping?
A 68.0 kg person escapes from a burning building by jumping from a window 25m above a catching net. Assuming that air resistance exerts a 95N force on the person during the fall, determine the person's velocity just before hitting the net.
Suppose you hear a clap of 4.63 seconds after seeing the lightning stroke. how far are you from the lightning stroke
Illustrate what is the angular velocity of the merry-go-round now? What if the people were on it initially and then jumped off in a radial direction (relative to the merry-go-round)?
Consider the circuit shown with C1=5 microfarads C2=3 microfarads, and V0=10V. The switch S is originally closed downward so that the capacitor C2 is fully charged by the battery V0. a. find the charge C2 b. The switch is then moved to the upper posi..
a 5 kg mass is attached to the end of a 1.0-m string. The system is whirled in a horizontal circular path. What is the maximum speed of the mass if the string is not to break
Doug hits a hockey puck, giving it an initial velcoity of 6.0 m/s. how far will the puck slide before stopping
A gas increases in pressure from 2.0 atm to 6.0 atm at a constant volume of 1.0 m3 and then expands at constant pressure to a volume of 3.0 m3 before returning to its initial state. How much work is completed in one cycle.
A NASA satellite has just observed an asteroid that is on a collision course with the Earth. With what speed will it hit the Earth's surface
An astronaut weighs 275 lbs with equipment here on the surface of the earth. If he goes to a planet where the acceleration of gravity is 12.5 ft/s/s, What will be his mass be there
Justin moves a desk 4.80m across a level floor by pushing on it with a constanst horizontal force of 340N. find the change on the desks gravitional potential energy
A skier traveling 11.2 m/s reaches the foot of a steady upward 15.8° incline and glides 10.9 m up along this slope before coming to rest
A cannonball is fired out of a cannon at [50] m/s at [45] degrees above horizontal, on level ground. How far will the cannonball travel horizontally
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