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Physics, 22.06.2019 13:40
An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.
Answers: 2
Physics, 23.06.2019 00:30
Which of the following are forms of phase changes a. freezing b. condensation c. heating d. exchanging
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Physics, 23.06.2019 22:20
Displacement is distance combined with direction. speed. velocity. magnitude.
Answers: 3
Physics, 24.06.2019 00:00
The pin is made of a material having a failure shear stress of Ï„fail = 130 mpa . part a determine the minimum required diameter of the pin to the nearest mm. apply a factor of safety of f.s. = 2.5 against shear failure.
Answers: 3
Joe follows the procedure below to make a compass.1. Move a magnet from the top of a needle to its p...
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