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The ball is kicked from point A with the initial velocity vA=10m/s. Determine the range R, and the speed when the ball strikes the ground
a window frame manufacturer is searching for ways to improve revenue from its triple- insulated sliding windows sold
the change in diameter 2.5 in. of a large steel bolt is carefully measured as the nut is tightened. knowing that e 29 x
A compressor used in a gas turbine engine increases the pressure of 3000 lbm/min of air from 15 psia to 150 psia without changing the kinetic or potential energy of the air. if the enthalpy of entering air is 118 btu/lbm and that of the compressed ai..
Moist air at 450C and relative humidity 30% (State 1) with another stream of moist air at 20?C and relative humidity 50% (State 2) in an adiabatic duct. Mass flow rate of dry air is 0.8 kg/s at section 1 and 1 kg/s at section 2. The mixed stream (Sta..
Water is pumped from a lake at ambient pressure and temperature to an elevation of 15 m through a pipe of 2-cm diameter galvanized iron at a flow rate of 0.00366 m3 /s. Assume the discharge is to open atmosphere. The pipe is 70 m long and has 2- 90o ..
a refrigerator with a coefficient of performance of 4.0 transfers heat from a cold region at -20 degrees c to a hot a
suppose a cube of aluminum which is 1.00 cm on a side accumulates anet charge of 2.50 pc. a what percentage of the
Steam at 3 MPa,400 degree Celsius is expanded to 30 kPa, 92 percent isentropic efficency.The mass flow rate is 2 kg/s. Determine (a)the power output.
wind is blowing on a 55-gallon drum. estimate the wind speed needed to tip the drum over. work in si units. the mass of
As shown in the sketch, water flows at 2550 kg/s from a very large reservoir through a penstock (pipe) to a hydro turbine. The water exits the turbine through a 0.5 m diameter pipe. The reservoir surface is 30m above the location where the water exit..
a four-cylinder two-stroke 2.0-l diesel engine that operates on an ideal diesel cycle has a compression ratio of 22 and
A refrigeration cycle has a coefficient of performance equal to 75% of the value for a reversible refrigeration cycle operating between cold and hot reservoirs at 258C and 408C, respectively.
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