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One mole of a monoatomic ideal gas is confined to a cylinder by a piston. The gas is kept in thermal contact with the reservoir held at temperature 27oC while the piston is slowly pushed in to such that the value is halved. Calculate the entropy change of the gas.
A certain defibrillator sends 0.12 C of charge through the heart. How much energy is released when it discharges
a beam of light is incident from air on the surface of a liquid. if the angle of incidence is 25.5deg and the angle of
An unstable particle called the pion has a mean lifetime of 25 ns in its own rest frame. What is the mean lifetime of the pions as measured in the laboratory frame
a capacitor is consists of two short sections of parallel wires in air. one wire is found to be of the voltage of 48 v
A thin rod of length 0.84 m and mass 190 g is suspended freely from one end. find how far above that position the center of mass rises
Determine the capacitance of a parallel plate capacitor if the area of each plate is 0.12 m2, the separation of the plates is 2 millimeter
Only two forces act on an object (mass = 3.30 kg), as in the drawing. (F = 79.0 N.) Find the magnitude and direction (relative to the x axis) of the acceleration of the object
three point charges are placed on the x-axis as follows 22 mc at x 0 30 mc at x 0.50 m and -14 mc at x 1.3 m.a find
A steel wire of length L=2.0 m with cross section A=0.5cm2 is supported from one end by the ceiling, Calculate the elongation of the wire
A magnetic field and an electric field, in separate regions of space, have strengths of 1.25 T and 1.25 N/C, respectively. What is the energy density of the magnetic field
a piano note is compared to a tuning fork vibrating at 440 Hz. Four beats per second are discerned by the piano tuner. What was the initial frequency of the piano wire
An engine absorbs 3,470 J of heat energy each cycle and expels 1,150 J. If it is a reversible heat engine and the hot reservoir is at 730 K, what is the temperature of the cold reservoir
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