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A beaker of fresh water is in place on the scale when the 1-lb stainless-steel cylinder is added to the beaker. What is the normal force which the cylinder exerts on the bottom of the beaker? By how much does the scale reading increase as the cylinder is added? Explain your answer.
a piece of machinery can be bought for 10000 cash or for 2000 down and annual payments of 750 for 15 years. what is the
suppose lithium is dissolved interstitially in silicon. would you expect the lithium atoms to be donors or acceptors?
Liquid water enters a valve at 300 kPa and exits at 275 kPa. As water flows through the valve, the change in its temperature, stray heat transfer with the surroundings and potential energy effects are negligible. Operation is at steady state. Modelin..
someone has suggested that the air-standard otto cycle is more accurate if the two isentropic processes are replaced
It is required to design a low-voltage, high-current, shunt-excited DC motor for hoisting drive in industrial overhead crane system. The output power of the machine is expected to be between (20+X) hp. The copper losses in the machine should ..
Determine the magnitude of tensile force and corresponding normal stress of a wire A 28-ft length of 0.25-in
refrigerant-134a enters the evaporator coils placed at the back of the freezer section of a household refrigerator at
In a cryogenic application, carbon monoxide (CO) gas undergoes a constant-pressure process at 1000 lbf/in^2. In a piston-cylinder assembly from T1=-100F to T2=-30F Determine the work for the process, in Btu per lb of carbon monoxide present.
For each of the cases below determine if the heat engine satisfies the first law (energy equation) and if it violates the second law.
The power P required to drive a fan is believed to depend on density p, flow rate Q, impeller dia. D, and angular veloctiy w in Hz. Determine by dimensional analysis, the general expression for dependence of P on other variables.
air discharges downward in a pipe and then outward between the parallel disks. assuming negligible density change in
in order to accommodate a bearing on an 80mm diameter shaft it is suggested that it be reduced in diameter to 65 mm
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