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A cylindrical chamber containing an ideal diatomic gas is sealed by a movable piston with cross-sectional area A = 0.0015 m2. The volume of the chamber is initially V = 10-3 m3; the pressure outside the chamber constant at 105 Pa. Initially the gas pressure inside is 105 Pa and its temperature is 27°C.
A 20-kg mass placed on the piston causes the gas to undergo adiabatic compression. What is the final volume after the mass comes to rest?
At a dock, a crane lifts a 2094 kg container 14 m, swings it out over the deck of a freighter, and lowers the container into the hold of the freighter, How much work is done by the crane on the container?
Steel Piano string, The lowest note on a grand piano has a frequency of 27.5 Hz. The string is 2 m (more or less; let's just assume it is exactly 2.000 m) long, and its tension is 1000 N (again, more or less, so let's say it's exactly 1000 N).
A circular loop in the plane of the screen lies in a 0.60 T magnetic field pointing into the screen. The loop's diameter changes from 18.5 cm to 6.0 cm in 0.50 s.
How much heat flows from 1.0 kg of water at 40.0 degrees C when it is placed in contact with 1.0 kg of 16.0 degrees C water in reaching equilibrium, what is the change in entropy due to this heat transfer
Battery-powered electricity is very expensive compared with that available from a wall receptacle. Estimate the cost per kWh of an alkaline D-cell
A certain red giant star has a luminosity of 100,000 times that of the Sun and is located 600 light-years from Earth. calculate the rate of interstellar extinction in the direction of the star
If you lift the front wheel of a poorly maintained bicycle off the ground, If the moment of inertia of the wheel about its axle is 0.30 , what is the magnitude of the frictional torque
Find out the magnitude of the charge on the moving particle. The baby soon learns to bounce with utmost amplitude and minimum effort by bending her knees at what frequency.
q1. what are sunspots and how are they related to suns magnetic field? is a magnetic field stronger weaker in sunspots?
q. a cardinal richmondena cardinalis of mass 3.90times10-2 and a baseball of mass 0.144 have the same kinetic energy.
A rope is used to pull a 4.56 kg block at constant speed 5.47 m along a horizontal floor. find the work done by the rope's force
You have been given a long lenght of wire. You measure the resistance of the wire, What is the resistance of one of those sections
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