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In an effort to reduce the pollution in its larger cities, a state government has provided incentives to owners of polluting companies to move to less populated areas with significantly lower pollution, especially companies such as foundries that produce noise and smelly, smoky airborne pollution. What are the advantages and disadvantages of such a system of "distributing" the pollution? Does spreading the pollution solve the health problem and/or reduce citizen complaints?
To what value could the gear hardness be reduced in Problem 15.31, without making the gear teeth weaker than the pinion teeth based on surface fatigue?
a large food processing plant requires 2 lbsec of saturated steam or slightly superheated steam at 80 psi which is
For the 40 phon sound level shown in Fig. 11.12 an A/D converter is to be provided to assure a resolution of ±1 dB at the minimum SPL condition while also providing a voltage output of 0.4 V at the 80-dB SPL condition. Specify the number of bits r..
nitrogen n2 gas within a piston-cylinder assembly undergoes a compression from p1 0.2mpa v12.75 m3 to a state where p2
two circular aluminum pipes of equal length l 24 in are loaded by torsional moments t. pipe 1 has outside and inside
A heat pump has heat-transfer addition at 280 K and heat transfer out at 420 K, and the heat-transfer rate out at 420 K is 900 kJ/min. For each case below, determine from both the Clausis inequality and the Carnot principle for a heat pump whether th..
the length of a cast iron pipe is to be 4200 ft. the head causing flow is to be 12.6 ft. after the pipe has been in
Using the EPA exponential model, calculate the yearly gas production for 20 years after opening. What is the peak gas production in m3/yr?
Compute the corresponding volume flow rate if the diameter at A is 5.0 cm. The phenomenon that occurs at a when p2 falls to nearly zero is known as cavitations. The water vaporizes into smallbubbles.
a 12-in. length of aluminum tubing with properties of e 10.4 times 106 psi and alpha 12 times 10 -6 per degree
1. It is proposed that the velocity V issuing from a hole in the side of an open tank depends on the density r of the ?uid, the distance H from the surface, and gravity g. What expression relates the variables? 2. Include the viscosity m in the list ..
10 kg of gaseous oxygen is compressed in a piston-cylinder device from an initial state of .8 m3kg to a final state of
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