Use PSpice to find the Thevenin equivalent circuit at terminals a-b of the circuit in Fig. 4.125.
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The remote sense terminal of an alternator would most likely be connected to the ____?
A. battery negative terminal B. battery positive terminal C. alternator ground D. excitation terminal
Calculate Q, W, ?U, and ?H in each case. Take 
and 
What will be an ideal response?
One mole of an ideal gas, initially at 30°C and 1 bar, is changed to 130°C and 10 bar by three different mechanically reversible processes:
? The gas is first heated at constant volume until its temperature is 130°C; then it is compressed isothermally until its pressure is 10 bar.
? The gas is first heated at constant pressure until its temperature is 130°C; then it is compressed isothermally to 10 bar.
? The gas is first compressed isothermally to 10 bar; then it is heated at constant pressure to 130°C.
Alternatively, take 
and 
You irrigated 0.75 acre of tomatoes. The system you used under standard pressure of 35 pounds per square inch (psi) had a flow rate of 1.05 gallons per minute (gpm). Each nozzle covered a circular area with a radius of 20 feet. You applied 1 acre-inch per week by applying 1/3 of it on three different days of the week. (Note: 1 acre-inch = 27,154 gal.)
a. How many square feet are in 0.75 acre? b. How many square feet does one nozzle cover? c. How many nozzles will be needed to cover 0.75 acre? d. What is the flow rate when all the nozzles are used? e. How many hours did take to have 1 acre-inch coverage on 0.75 acre? f. How many hours did it take to apply the water needed in one of the three days if you have a 10 percent loss?
On a vacuum-boosted system, all of the following can cause poor power-assist unit operation EXCEPT:
A. excessive manifold vacuum. B. leaking or collapsed vacuum lines. C. punctured diaphragm. D. leaky piston seals.