How many Btus of heat are removed per hour when the water at a flow rate of 10 lbs. per minute is cooled 15°F? (Water weighs 8.33 lb. per gallon.)
What will be an ideal response?
The 10 gallons of water times 60 min/hr = 600 gallons per hour times 8.33 lbs. per gallon = 4,998 lbs. per hour times 15°F equals 74,970 Btu/h.
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What will be an ideal response?
For the circuit shown in Figure P15.41, let vin be a 1-kHz sinusoidal signal with 0° phase angle, 0 VDC offset, and 20-V peak-to-peak amplitude. Let vG be a rectangular pulse train, with pulse width 10 ?s and period 100 ?s with the leading edge of the first pulse at t = 0.
a. Sketch vo if the RC circuit has a time constant equal to 20 ?s.
b. Sketch vo if the RC circuit has a time constant equal to 1 ms.
