Determine the isentropic efficiency if heat is transferred
The combustion gases (modeled as air) enter a turbine at 6atm, 1000K and exits at 1atm, 500K. Determine the isentropic efficiency if heat is transferred away from the surface at a rate of 10 kJ/kg at an average surface temperature of 350K.
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A 2500-kg truck moving at 10 m/s strikes a car waiting at a traffic light, hooking bumpers. The two continue to move together at 7 m/s. What was the mass of the truck car? Show Work!
A 75 kg swimmer dives horizontally off a 500 kg raft. If the diver's speed immediately after leaving the raft is 4 m/s, what is the corresponding raft speed? Show Work!
In heavy duty diesel engine dynamometer testing, the air-to-air intercooler is replaced with a liquid-to-air heat exchanger. In the laboratory heat exchanger, air enters one side of the exchanger at a rate of 1000 L/s, 400K, 2.5atm and exits at 32
One kilogram of water contained in a sealed piston-cylinder assembly, initially at 160°C and 200 kPa. Determine the following for this process the heat transfer (kJ).
Air (an ideal gas) contained in a rigid, insulated tank fitted with a paddle wheel, initially at 27 degrees celcius, 2 bar, and a volume of 2 m^3, is stirred until its temperature is 227 degrees celcius.
A Brayton cycle is the same as the Rankine cycle, but it takes place in the ideal gas region of states. A large stationary Brayton cycle gas-turbine power plant delivers a power output of 100 MW to an electric generator.
Your group manager tells you that she has heard that a sphere of AISI 1020 (HR) steel will produce plastic flow in the region of contact due to its own weight if placed on a flat plate of the same material.
Write the Maxwell's equations in full form (with time varying fields) assuming magnetic monopoles do exist in the universe. And comment on subsequent changes of each equation.
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Explain the risks of not reporting the results of your forensic assessment findings accurately. Provide specific examples.
Read "The Effect of Tart Cherry Juice Compared to a Sports Drink and Cycling Exercise Performance, Substrate Metabolism, and Recovery" from University Library
Identify and analyze one resource that provides information regarding services for dealing with and treating substance use and abuse in youth or adolescence.
Discuss how culture may influence one's perceptions. Provide an example of how culture may impact the interaction between a patient/client
Write an essay describing your achievement of a goal and your friends or family member's achievement of a goal using motivational theory
Pets can have a therapeutic effect on people; they seem to have the power to calm the anxious and cheer the depressed. Give three reasons
Review Chapter 12 and consider how your culture has impacted your worldview and personality. Pay particular attention to the section on characteristics of Cult