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A spherical balloon contains 2 kg of water at 200C, 500 kPa. The ballon material as elasticity such that the pressure inside is always proportional to the balloon diameter. The water is now allowed to cool until the volume is one-held the initial volume. (a) Determine the final temperature (b) Calculate the work for the process, considering the water as the system.
a 60 mm bore 02 series double row angular contact ball bearing has a 15 degrees contact angle. the outer ring rotates
infinite resistor network is shown below composed of resistors of resistance r0 on the horizontal lines and 2r0 on the
the piston has no mass and no friction. there is 2 kg of water and the initial temp is 99.61 c and initial volume is
You arrive home from a winter trip and turn on your baseboard (resistance coil) heater to warm the room. It remains on for 52 minutes, during which time it steadily consumes 3 kW of electricity. How much energy was transferred to the room in kJ?
steam is to be condensed in the condenser of a steam power plant at a temperature of 50 degrees celsius with cooling
an automobile of weight w that has a wheel base of lenght l during fourwheel braking. the center of gravity is a
steam enters the turbine of a cogeneration plant at 7 mpa and 500 degc. one quarter of the steam is extracted from the
today you have a savings account of 15 620. based on an annual interest rate of 4.2 what equal amount can you withdraw
Write a short technical report on Frequency Division Multiplexing
A gasoline engine is modeled as an Otto cycle. It has at temperature and pressure at the beginning of compression of 10°C and 90 kPa. The compression ratio is 7 and the specific energy added to the air during the heat addition process is 1432.46 ..
initially an insulated rigid tank contains 3.73 kg of water at 240oc and 1 mpa. a heater in the wall of the tank
steam enters an adiabatic turbine steadily at 3 mpa and 400 degree c and leaves at 50 kpa and 100 degree c. if the
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