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?
You are investing in a scheme which will pay you 18% annual interest. You will invest end of period annual amounts of $12,000 until the amount in the account is $240,000. How many years must you invest to reach you goal?
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
You can buy commercial paper of a major U.S. corporation for $975,000. The commercial paper has a face value of $1,000,000 and is 107 days from maturity. What is the discount yield on the commercial paper?
You want to be 90% confident that your estimate of the proportion of defective products is within.05 of the actual proportion of defective products. How many products should be in your sample?
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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