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A system of ideal gas is expanded adiabatically to 1.76 times its volume, while doing 517 J of work.
a) Did the temperature of the gas increase or decrease?
b) How much heat was transferred?
c) What was the change in the internal energy of the gas?
An explosion breaks an object originally at rest into two fragments. One fragment acquires twice the kinetic energy of the other. What is the ratio of their masses
A potter's wheel having a radius 0.53 m and a moment of inertia of 14.9 kg · m2 is rotating freely at 46 rev/min. Find the effective coefficient of kinetic friction between the wheel and the wet rag
Two masses of 5.0 kilogram and 10 kilogram are connected by a compressed spring and rest on a frictionless table. find what are the speeds of the two masses
A bowling ball (mass = 7.2 kg, radius = 0.10 m) and a billiard ball (mass = 0.42 kg, radius = 0.028 m) may each be treated asuniform spheres. What is the magnitude of the maximum gravitational force that each can exert on the other?
two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. the orbital speeds
A 6.40 nF capacitor is initially charged by a potential difference of 1.40×103 V. find the final electric potential energy stored in the capacitor
A uniform drawbridge must be held at a 37 deg. angle above the horizontal to allow ships to pass underneath. Find the direction and magnitude of the force the hinge exerts on the bridge
A hydrogen atom in the ground state absorbs a 20 eV photon. What is the speed of the liberated electron
Two circuits contain an emf produced by a moving metal rod, like that shown in the drawing. If the speed of the rod in circuit 1 were twice that in circuit 2, what would be the ratio P1/P2 of the powers in the circuits
A 56 kg pole vaulter running at 10m/s vaults over the bar. Her speed when she is above the bar is 0.7m/s. Neglect air resistance, as well as any evergy absorbed by the pole, and determine her altitude as she crosses the bar.
A basketball of mass 3 kg and radius 0.20 m rolls without slipping down an incline of angle 30 degrees. Calculate the acceleration of the center of mass
A 1.0-cm-diameter pipe widens to 2.0 , then narrows to 0.5 . Liquid flows through the first segment at a speed of 4.0. Speed of 2nd segment, and 3rd? Whats the vol flow rate?
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