Explain what is the change in energy of the system
A gas expands and does P-V work on thesurroundings equal to 287 J. At the same time, it absorbs 216 J of heat from the surroundings. What is the change in energy of the system?
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The flow of water is 4 ft^3/s. What horsepower is delivered by the pump to the flow if the efficiency of the pump is 80%?
What is the speed Vfinal of the electron when it is 10.0 cm from charge 1?
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The mass of an empty container is 76.35g. The mass of thecontainer when filled with an unknown liquid (d=1.25g/ml) is195.50g. What is the mass of the container when filled with mercury? The density of Hg = 13.6 g/cm^3.
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