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6. How long can a 1500W heater be on before using more than 12 kWh of energy?
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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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Engineering, 04.07.2019 18:10
Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise
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Engineering, 04.07.2019 18:10
The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length
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Engineering, 04.07.2019 18:20
What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.
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6. How long can a 1500W heater be on before using more than 12 kWh of energy?...
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