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A 35lb block of tin is to be heated from room temperature to a relevant temperature for casting, Calculate enough points and plot a time-temperature graph if the heating is provided by a 5kw electric heating element with 70% efficiency.
A random sample of three bottles is selected from the running conveyor system. When the bottles are inspected, they are either properly labeled or they are not. Rejected bottles are scrapped. The proportion nonconforming is 0.25. What is the probabil..
A 1m3 rocket propellant chamber is filled with combustion gases at 3000 K and 7 Mpa at the instant combustion ceases. The throat area of the nozzle is 0.1m2. Estimate the time it takes for the chamber pressure to drop to 0.7 MPa. Assume that the inst..
Experimentally verify the noise level, time-constant, and accuracy of both systems.
A MASS of gas at an inital pressure of 28 bar and with internal energy of 1500kj,is
a spring-mass system has a frequency of 2 hz. when the mass is decreased by 0.4 kg the frequency is changed by 25.
Steam at 0.2 Mpa and 300 degrees Celsius is mixed with cold water at 20 degrees celsius and 0.2 MPa to produce 20 kg/s of saturated liquid water at 0.2 MPa. Find the required steam and cold water flow rates.
1.25 kg of a gas within a piston-cylinder assembly undergoes an expansion from a volume of v10.1m3 to a volume of
a mass of 6 kg of a saturated liquid plus vapor mixture of water exists at 175 kpa in a well-insulated rigid tank.
a block with mass m 13 kg is projected up a rough incline angled at ? 30 degrees to the ground with a speed of v 6.4
The lubricant that fills the 0.3-mm gap between the shaft and bearing is an oil having a kinematic viscosity of 8.0 ×10-4 m2/s and a specific gravity of 0.91. Determine the force F required to pull the shaft at a velocity of 3 m/s. Assume the velo..
(a) The final angular velocity of each cylinder,
a polluted air stream flowing at 12000 acfm at 90 degf and 1 atm has a concentration of 500 ppm of ethylbenzene c8h10.
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