Suppose you drop a 10-pound weight and a 5-pound weight on the Moon, both from the same height at the same time. What will happen?
A) Both weights will float freely, since everything is weightless on the Moon.
B) Both will hit the ground at the same time.
C) The 10-pound weight will hit the ground before the 5-pound weight.
D) The 5-pound weight will hit the ground before the 10-pound weight.
B
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A. 576 nm B. 578 nm C. 580 nm D. 582 nm
Long 20 cm by 20 cm square steel stock having a thermal conductivity of 50 W/mK and thermal diffusivity of 1 x 10^-5m^2/s is put in oil at 100ºC when the steel stock is at 300ºC. With a convective heat transfer coefficient of 150 W/m^2K, determine the temperature of the center and the edge of the stock after being heated for 2 minutes in the oil.
What will be an ideal response?
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What will be an ideal response?
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a. True b. False Indicate whether the statement is true or false