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The skateboarder in the drawing starts down the left side of theramp with an initial speed of 6.47 m/s. If non-conservative forces,such as kinetic friction and air resistance, are negligible, what would be the height h of the highest point reached by the skateboarder on the right side of the ramp?
A size-5 soccer ball of diameter 22.6 and mass 426 rolls up a hill without slipping, reaching a maximum height of 3.50 above the base of the hill. How much rotational kinetic energy did it then have
A ball of mass 0.300 kg that is moving with a speed of 7.2 m/a collides head-on and elastically with another ball initially at rest. Calculate the velocity of the target ball after the collision
A 10000 kg boxcar traveling at 20 m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 11 m/s. What is the mass of second car.
A motor attached to a 120 V/60 Hz power line draws an 8.10 A current. Its average energy dissipation is 810 W. What is the motor's resistance
Three charges are at the corners of an isosceles triangle, Calculate the amount of work required to assemble this system of charges, assuming they are brought in from infinity
A boxed 11.0 computer monitor is dragged by friction 7.50 up along the moving surface of a conveyor belt inclined at an angle of 36.8 above the horizontal. how much work is done on the monitor by friction
A magnetic field is directed at a 40.0 angle to a plane circular loop of wire with a radius of 26.8 cm. a) Draw a diagram showing the wire loop, compute the induced emf in the wire loop
An iron wire has a cross-sectional area equal to 1.45 10-5 m2. find the drift speed of conduction electrons in this wire
In a series circuit, a generator (1500 Hz, 14.0 V) is connected to a 18.0- resistor, a 4.30-?F capacitor, and a 5.10-mH inductor. Find the voltages across the inductor
A 20.00 kg child is on a swing that hangs from 3 m long chains. What is her maximum speed if she swings out to a 45.0 o angle.
If the cardiac output of a small dog is 4.05 x 10-3 m3/s, the radius of its aorta is 0.516 cm, determine the pressure drop across the aorta of the dog
a container holds 0.60g of argon at a pressure of 9.0atm.part a how much heat is required to increase the temperature
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