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The temperature of 9.20 mol of a monatomic ideal gas is raised reversibly from 260 K to 390 K, with its volume kept constant. What is the entropy change of the gas?
A student doing an experiment pours 0.160kg of heated copper shot into a 0.355-kg aluminum calorimeter cup containing 0.240kg of water. What was the initial temperature of the shot
410 J of heat is conducted from a reservoir at 395 K to one at 310 K. (a) What is the change in entropy of the universe? J/K
A neutron in a reactor makes an elastic collision head on with a nitrogen atom that is initially at rest. Obtain what percent of the neutron kinetic energy is transferred to the nitrogen nucleus
If, instead, the floor has a coefficient of kinetic friction µk = 0.04, what is the magnitude of the frictional force on the block when the block is moving?
A solenoid is wound with a single layer of insulated copper wire of diameter 2.000 mm and has a diameter of 5.000 cm and is 1.800 m long. How many turns are on the solenoid
A nuclear power plant operates at 79% of its maximumtheoretical (Carnot) efficiency between temperatures of660°C and 370°C. how much exhaust heat is discharged per hour
A 73.0 kg base runner begins his slide into second base when he is moving at a speed of 4.4 m/s. How much mechanical energy is lost due to friction acting on the runner
On a workday an average decibel level of the busy street is 89 dB, with 100 cars passing a given point every minute. If the number of cars is reduced to 30 every minute on a weekend, what is the decibel level of street.
Two springs with spring constants k1 and k2 are put togetherend-to-end. Let x1 be the amount by whichthe rst spring is stretched relative to its equilibrium length, andsimilarly for x2.
Calculate the focal lengths and locations of the principal planes and nodal points of a single thick lens in water (nW=1.33) whose surfaces (from left to right) have radii of curvature - 5.5 cm and +7.5 cm, respectively
The Eskimo pushes the same 50.0-kg sled over level ground with a force of 2.25 102 N exerted horizontally, evaluate the coefficient of kinetic friction
write an expression for the induced emf in terms of the magnetic field, the legth of the rod, the maximum velocity of the rod, the displacement of the rod, and the maximum displacement of the rod
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