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A 62.0kg skier is moving at 6.50m/s on a frictionless, horizontal snow-covered plateau when she encounters a rough patch 3.50m long. The coefficient of kinetic friction between this patch and her skis is 0.300. After crossing the rough patch and returning to friction-free snow, she skis down an icy, frictionless hill 2.50m high.
(1) How fast is the skier moving when she gets to the bottom of the hill?
(2) How much internal energy was generated in crossing the rough patch?
A free floating piston cylinder device that contains 1 kg of a 25% quality saturated mixture of water at 150C, Determine the initial and final pressure, the total energy of electrical work added to the water
The motor of a four wheeler traveling along a muddy trail generates an average power of 7.20 104 W when moving at a constant speed of 11 m/s. What is the tension in the tow rope pulling the log
A uranium and iron atom reside a distance R = 59.70 nm apart. The uranium atom is singly ionized; the iron atom is doubly ionized. what is the magnitude of the force on the electron from the uranium ion
Find the von Mises stress (in MPa) at the location of the strain gages.
A particular myelinated axon has nodes spaced 0.80mm apart. The resistance between nodes is 21M?; the capacitance of each insulated segment is 1.3pF .
A charge of 910 C was passed through a wire in 3.10min. What was the average electric current during that interval
An electrical generating plant operates a boiler at a temperature of 220 C, What is the maximum theoretical efficency of the plant
Two satellites are in circular orbits around the earth. The orbit for satellite A is at a height of 363 km above the earth's surface, Find the orbital speed for satellite A and satellite B
A proton in Fermilab's Tevatron is accelerated through a potential difference 2.06 MV during each revolution around the ring of radius 1.00 km. how many revolutions must the proton make
A 3.00-m-long, 400 kg steel beam extends horizontally from the point where it has been bolted to framework of a new building under construction. A 74 kg construction worker stands at the far end of the beam.What is the magnitude of the torque abo..
A tank 2.30 meters in height is filled with water to a level of 2.10 meters. At the bottom of the tank a hose is attached. Find the velocity of the water coming out of the hose
A glass lens (nglass = 1.52) has a 136 nm thick anti-reflective film (nfilm = 1.33) on one side. What is the largest wavelength of the light that is totally removed by the film
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