Package is dropped over the side
A hot-air balloon is ascending at the rate of 12 m/s and is 70 m above the ground when a package is dropped over the side.
(a) How long does the package take to reach the ground?
(b) With what speed does it hit the ground?
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The quality assurance program for a certain adhesive formulation process involves measuring how well the adhesive sticks a piece of plastic to a glass surface.
What is the temperature of the air at the end of the process? What is the entropy generation within this system in units of kJ/K ?
A constant magnetic field of 0.50 T is applied to a rectangular loop of area 3.0x10^-3 m^2. If the area of this loop changes from its orginal value to a new value of 1.6x10^-3 m^2 in 1.6 seconds. What is the emf induced in the loop?
Suppose that the distribution function of a discrete random variable X is given by
What is the thermal efficiency of this cycle? Use constant specific heats at room temperature. What would the thermal efficiency of the cycle be without the regenerator?
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You toss n coins, each showing heads with probability p, independently of the other tosses. Each coin that shows tails is tossed again. Let X be the total number of heads.
Is head loss greater if most of the pipe of a pumping system with a vertical lift from an underground fuel tank vs a system above ground?
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