Physics, 18.12.2019 19:31 toricepeda82
Afillet weld has a cross-sectional area of 25.0 mm2and is 300 mm long. (a) what quantity of heat (in joules) is required to accomplish the weld, if the metal to be welded is low carbon steel? (b) how much heat must be generated at the welding source, if the heat transfer factor is 0.75 and the melting factor=0.63? (ans: ? , 163,700)
Answers: 2
Physics, 22.06.2019 12:50
The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.
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Physics, 22.06.2019 14:10
Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:
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Physics, 22.06.2019 18:10
Which of the following statement is false ? a.batteries should never be stored on metal trays or outside in the elements)b, battery acid cannot be neutralized)c.do not stack batteries on top of each other)d.never put a damaged battery in a dumpster. i
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Afillet weld has a cross-sectional area of 25.0 mm2and is 300 mm long. (a) what quantity of heat (in...
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