Engineering, 20.12.2019 22:31 emilyanneK2540
Engine oil (cp = 2100 j/kg·k) is to be heated from 20°c to 60°c at a rate of 0.3 kg/s in a 2-cm-diameter thin-walled copper tube by condensing steam outside at a temperature of 130°c (hfg = 2174 kj/kg). for an overall heat transfer coefficient of 650 w/m2 ·k, determine the rate of heat transfer and the length of the tube required to achieve it.
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The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.
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Engineering, 04.07.2019 16:10
An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)
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Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
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Engineering, 04.07.2019 18:10
Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.
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Engine oil (cp = 2100 j/kg·k) is to be heated from 20°c to 60°c at a rate of 0.3 kg/s in a 2-cm-diam...
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