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In an experiment, a rectangular block with height h is allowed to float in four separate liquids. In the first liquid, which is water, it floats fully submerged. In liquids A, B, and C, it floats with heights h/2, 2h/3, and h/4 above the liquid surface, respectively. What are the relative densities (the densities relative to that of water) of?
(a) A,
(b) B, and
(c) C?
a piston-cylinder device with a piston surface area of 0.1m2 is initially filled with 0.05m3 of air at the local
a particle is traveling with a velocity of v 3sqrtte-0.2ti 4e-0.8t2j ms where t is in seconds. determine the magnitude
determine the coordinates xc and yc of the point where the resultant load must act in order to produce uniform normal stress in the column.
a thin metal cylinder contains an ideal gas. the cylinder has a cross sectional area of 100 cm2. the surroundings
a conveyor belt rises at a thirty degree angle. its vertical hight measured from the ground is 20 ft sorry i cant seem
a 20-ft long 8-ft-high rectangular tank open to the atmosphere is towed by a truck on a level road. the tank is filled
a 0.3 kg bullet is fired into a 3.6 kg wooden block and becomes embedded in it. knowing that the block and bullet move
a smoke stream from a smoke generating tube is often used as a simple method of flow visualization in wind tunnels.
What are stress concentrations, what causes them, and why should engineers be concerned about them?
A tank with a fixed volume contains 1 kg of dry air at 200oC . If 200 kJ of heat is added to the tank determine the final temperature and change in entropy.
generally how does the effectiveness change if the size surface area of a heat exchanger is increased? if the overall
1. Define pyrolysis in its most general sense. 2. Pyrolysis products include solids, liquids, and non-condensable gases. Provide a high level summary of the chemical composition of each of these products.
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