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An olympic skier moving at 20.0 m/s down a 30.0 Degrees slope encounters a region of wet snow and slides 145 m before coming to a halt. what is the coefficient of friction between skis and the snow?
A sledge loaded with bricks has a total mass of 18.0 kg and is pulled at constant speed by a rope inclined at 19.6° above the horizontal. How much work is done by the rope on the sledge
What mass can it support in water before sinking. Two concentric spherical shells with uniformly distributed masses M1 = kg and M2 = kg are situated as shown . Find out the magnitude Find the magnitude of the net gravitational force on a particle ..
A copper wire that is 1 mm thick and 30 cm long is connected to a 1 V battery. What is the power dissipated in the wire at this temperature
A locomotive pulls a train along a straight, horizontal track at constant velocity. What horizontal forces act on the train and the locomotive
Three 15-? resistors are connected in parallel. This arrangement is connected in series with a 10-? resistor. What is the effective resistance of the parallel portion of the circuit
A positron emission tomography (PET) scanner examines the gamma rays emitted when positrons and electrons annihilate each other. What is the wavelength of the photons
An explorer is caught in a whiteout (in which the snowfall is so thick that the ground cannot be distinguished from the sky) while returning to base camp. How far (in km) must he now travel to reach base camp
How much of the rope must be pulled. Find the magnitude of the magnetic field at the point x = 0, y = 0.7 m, z = 0.
Upton Chuck is riding the Giant Drop at Great America. If Upton free falls for 2.6 seconds, what will be his final velocity and how far will he fall
Heat and physical activity. In a bench press, a weight lifter lifts 132kg 41cm. In so doing, the athlete expends 1.2kJ. What's the heat flow involved in this process
A 60-kg skier starts from rest from the top of a 50-m high slope. If the work done by friction is -6.0 15) x 103 J, what is the speed of the skier
A cockroach of mass m lies on the rim of a uniform disk of mass 3 m that can rotate freely about its center like a merry-go-round. find the angular velocity of the cockroach-disk system
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