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Consider the system shown in Fig, if a change of 0.7 kPa in the pressure of air causes the brine-mercury interface in the right column to drop by 5 mm in the brine level in the right column while the pressure in the brine pipe remains constant, determine the ratio of A2/A1
A golden bar of metal (5 centimeters by 18 centimeters by 4 centimeters) being transported by armored car is suspected of being fake, made from a less valuable metal with a thin coating of pure gold. The bar is found to have a mass of 2.7 kilograms. ..
a truck travelling along a straight road at speed 20 km/hr increases its speed to 120 hr/hr in time 15 sec.If its acceleration is constant, determine the distance traveled.
the rotor shaft of a helicopter drivesd the rotor blades that provide the lifting force and is subjected to a
a square threaded power screw has a lead angle lambda of 15o. will the screw be self-locking if it is used in
the velocity of a particle moving in the x-y plane is given by 6.12i 3.24j ms at time t3.65s. its average acceleration
sphere a has a mass of 23 kg and a radius of 75 mm while sphere b has a mass of 4 kg and a radius of 50 mm. if the
the state liquid water is changed from 50 pisa and 50 f to 200 pisa and 100 f. determine the change in the internal
A piston cylinder device contains 3 kg of air at 300 kPa and 25°C. During a quasiequilibrium isothermal expansion process, 20 kJ of boundary work is done by the system, and 8 kJ of paddlewheel work is done on the system. The heat transfer during th..
An adiabatic compressor is used to bring saturated water vapor at a pressure of 103 lbf/in^2 up to 1000 lbf/in^2, where the actual exit temperature is 1000 F. Find the compressor efficiency and the entropy generation. Is there an improvement by reduc..
for a piece of aluminum stock choose a grinding wheel that will grind .050 of stock from it. show the grinding wheel
a projectile enters a resisting medium a x 0 with a initial velocity of vo 900 fts and travels 4 in. before coming to
would it be a possible to use a normal domestic refrigerator as a heat source for a small hot tub or whirlpool? if so
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