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One kilogram of water vapor (as an ideal gas) is filled in a frictionless piston-cylinder assembly. The piston can move freely in the cylinder and it is in surroundings of 1 atm. Initially, the water vapor is at 400 K and 1 atm. Heat transfer to the water vapor occurs until the final temperature is 800 K. Determine the heat transfer for the process. (Do not assume constant cv and cp).
Two bars of identical mass are at 29 °C. One is made from glass and the other from another substance. The specific heat capacity of glass is 840 J/ (kg • C°).
An electron and a positron each have a mass of 9.11 x 10-31 kg. They collide and both vanish, determine the energy of the electromagnetic radiation
If it takes 9.19e5 J of heat to bring 0.30 kg of ice at -17*C to water vapor at 108*C, what is the specific heat of the water vapor
The coefficient of performance of a refrigerator is defined as the ratio of heat extracted, At what rate will this refrigerator deliver heat to the room in which it is operating when it is running
While a certain rubber band is stretched a distance x, it exerts a restoring force of magnitude F=ax+bx^2, where a and b are constants. The work completed in stretching this rubber band from x=0 to x=L is what.
A proton is moving through a magnetic field of strength 2 kT with a speed of 2.5*10^8 m/s, what is the angle between the proton's velocity and the direction of the field
A satellite that weighs 4900 N on the launchpad travels around the earth's equator in a circular orbit with a period of 1.667 h. Calculate the magnitude of the earth's gravitational force on the satellite
A woman is riding a Jet Ski at a speed of 24 m/s and notices a seawall straight ahead. what is the minimum distance from the seawall that she can begin making her turn and still avoid a crash
How many 104 W lightbulbs can you use in a 102 V circuit without tripping a 17 A circuit breaker? (The bulbs are connected in parallel that means that the potential difference across each lightbulb is 102 V.)
Three blocks, each of mass 9 kg are on a frictionless table. A hand pushes on the left most box (A) such that the three boxes accelerate in the positive horizontal direction, What is the magnitude of the force on block A from the hand
Compute the horizontal distance the ball
A vertical spring (spring constant = 119 N/m) is mounted on the floor. A 0.390 kg block is placed on top of the spring and pushed down to start it oscillating in simple harmonic motion. The block is not attached to spring.
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