Calculate the kinetic energy of a body which has a mass of 5 kg and velocity of 10 m/s.
Direction: Solve the following problems. Write your solution on a sheet of paper and submit a scanned
copy of your work. Please box your final answer and write your solution clearly.
1. Calculate the kinetic energy of a body which has a mass of 5 kg and velocity of 10 m/s.
2. In a non-flow process carried out 5.4 kg substance, there was a specified internal energy decrease of 50 kJ/kg and a work transfer of the substance of 8.5 kJ/kg. Determine the heat transfer and a state
whether it is gain or loss.
3. A gas is contained in a cylinder with a moveable piston on which a heavy block is placed. Suppose the region outside the chamber is evacuated and the total mass of the block and the movable piston is 102 kg. When 2140 J of heat flows into the gas, the internal energy of the gas increases by 1580 J.
what is the distance through which the piston rises?
4. Calculate the increase in internal energy of a gas in a closed system during a process in which 100 J of heat is supplied to the system and 400 J of work is produce.
5. Convert the following readings of pressure to kPa, assuming the barometer reads 760 mm Hg.
a. 90 cm Hg gauge
b. 40 cm Hg vacuum
c. 1.2 m H20 gauge
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