Achieving a carnot efficiency
A heat engine exhausts its heat at 340°C and has a Carnot efficiency of 39%. What exhaust temperature would enable it to achieve a Carnot efficiency of 47%?
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The third law entropy for gas at STP is 270 J/K/mole. Calculate delta U and delta G for the process and also the initial state of the gas.
When the car you are riding in stops suddenly, heavy objects move toward the front of the car. Why does a helium-filled balloon move toward the rear of the car? Please state any laws of motion, etc governing this answer.
Determine the number of outcomes in the event. Decide whether the event is a simple event or not. You randomly select one card from standard deck. event b is selecting a five.
Calculate and plot the response of a system with transfer function G(s)=100(s^2+2)/(s^3+s^2+5s+1) to the input, u(t)=10exp(-t)sin(5t), assuming zero initial conditions.
The nominal composition by weight of this material is as follows: carbon 0.08 percent; chromium 19 percent; nickel 10 percent; iron the remainder. Calculate the macroscopic absorption cross section of SS-304 at 0.0253 eV.
An oil film (n = 1.46) floating on water is illuminated by white light at normal incidence. The film is 283 nm thick. (a) Find the wavelength and color of the light in the visible spectrum most strongly reflected.
At the beginning of the compression process in an ideal Otto cycle air is at 95 KPa ,27 degree c ,and the temperature at the end of the compression process is 416 degree c .1600 kJ/kg of heat is transferred to the air during the heat addition proc
Seventy-eight percent of the light aircraft that disappear while in flight in a certain country are subsequently discovered. Of the aircraft that are discovered, 65% have an emergency locator, whereas 84% of the aircraft not discovered do not have
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The nurse is caring for a client with suspected neuroleptic malignant syndrome (NMS). Which of the following findings would support a diagnosis of NMS?
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