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Determine the image in the w plane of the circle
under the inversion mapping w = 1/z.
a smoking lounge is to accommodate 15 heavy smokers. the minimum fresh air requirement for smoking lounges is specified
An ideal Diesel cycle has a maximum operating temperature of T3= 862 C and a cut off ratio of 1.19. The state of the air at the beginning of the compression is P1 = 96 kPa and T1 = 15 C. This cycle is executed in a four-stroke, eight-cylinder engine ..
Gravity elevators are an old idea in science fiction and consist of an evacuated tunnel dug straight through the centre of the Earth as shown below. The idea is that the elevator falls due to gravity until it reaches the other end.
1. a circular hovercraft is to levitate at a gap height of 2.5 mm after picking up a payload. the hovercraft has a
Air enters a pipe at 25 0C, 100 kPa at a flow rate of 36 m3/hr. A heater on the outside of the pipe draws 8 amps at a voltage of 120 V. All the heat from the heater is transferred to the air (well insulated and wall t is small). Assuming that the air..
A 680 liter oxygen tank is filled to the pressure of 13.7 Mpa, and used to help a respiratory patient in a room with a temperature of 20 degrees C. During one treatment, 135 Liters of oxygen is supplied from the tank to the patient. The tank is then ..
if ice homogeneously nucleates at -49.3oc calculate the critical radius given values of -3.1 times 108 jm3 and 25 times
Assume that the board weighs 25 kg and deflects 10 cm statically when the person stands on it. What is the static safety factor if the board material has an ultimate stress of 200 MPa in the longitudinal direction
An internal combustion engine is driving an electrical dynamometer. The torque arm length is 0.5 m and the force is 200 N. A tachometer indicates that the shaft speed is 3490 rpm. What are the engine torque and power output?
a spring-mass is excited by a force f0sinomegat. at resonance the amplitude is measured to be 0.58 cm. at 0.80 resonant
air expands from 100kpa 40 degrees c with volume .75 m3 to 15kpa in a polytropic process with polytropic exponent n.
two low-carbon steel plates of 12 mm thickness are butt-joined by welding. sketch to show the expected weld bead
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