What is the new efficiency keeping the same low temperature
An ideal carnot heat engine has an efficiency of 40%. If the high temperature is raised 15% what is the new efficiency keeping the same low temperature?
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(a) Find the magnitude of the magnetic force on the electron. (b) Repeat your calculation for a proton having the same velocity.
A large coal fired power plant has an efficiency of 45% and produces net 1500 MW of electricity. Coal releases 25000 kJ/kg as it burns so how much coal is used per hour?
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After 2 years, there was no difference in the risk of heart attack, stroke, or dying from heart disease between those who took the prescription drug and low-dose aspirin daily and those who took low-dose aspirin plus a dummy pill. The 2-drug combi
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A bank enters a repurchase agreement in which it agrees to buy Treasury securities from a correspondent bank at a price of $19,945,000, with the promise to buy them back at a price of $20,000,000.
The mechanical effficiency of the system is 80%. What is the average power input in Watts necessary to accomplish this? Assume constant velocity.
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