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A sample consisting of 1.0mol of perfect gas molecules with C V =20.8 J K-1 is initially at 4.25 atm and 300K. It undergoes reversible adiabatic expansion until its pressure reaches 2.50 atm. Calculate the final volume and temperature and the work done.
Two small non conducting spheres have a total charge of 93.uC when placed 1.14m apart, the force each exerts on the other is 11.4N and is repulsive. What is the charge on each
The vertical component of this force is 128 newtons, as the horizontal component is 145 newtons. Calculate the magnitude of F.
two converging lenses each of focal length 15.2cm are placed 40.9 cm apart and an object is placed 30.0 cm in front of
The cylindrical beam of a 80.0 mW laser is 0.80 cm in diameter. What is the rms value of the electric field
On a banked race track, the smallest circular path on which cars can move has a radius of 112 m, find the largest speed at which cars can move on this track without relying on friction
A horizontal force of magnitude 31.2 N pushes a block of mass4.42 kg across a floor where the coefficient of kinetic friction is0.631. What is the increase in the kinetic energy of the block
A current of 7.93 A in a solenoid of length 14.2 cm creates a 0.327-T magnetic field at the center of the solenoid. How many turns does this solenoid contain
A person scuffing her feet on a wool rug on a dry day accumulates a net charge of -40?C. By how much does her mass increase
Based on the average measured velocity for the ball right after the collision, is it likely that the collision between the ball and the block is totally elastic?
A thin cylindrical shell and a solid cylinder have the same mass and radius. The two are released side by side and roll down, without slipping, from the top of an inclined plane that is 4.9 m above the ground. The acceleration of gravity is 9.8 m/..
Two point charges 3.0cm apart have an electric potential energy -130?J, find the lesser and greater charge
One ball is thrown upwards from the edge of the roof of 35 Three seconds a m tall building. What was the initial velocity of the first ball
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