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A dragster comes off the start line with an acceleration of 4 m/s2. The acceleration increases uniformly from 4 m/s2 to 10m/s2 over 3 seconds, then remains constant to the finish line (500m). Find: a) the acceleration as a function of time (make a graph) b) the velocity as a function of time c) the distance as a function of time d) the time at which it finishes
consider two reversible refrigerators operating in series. the first refrigerator removes heat at the rate of 250 kw
the 20-mm-diametersteel bolt is placed in the aluminum sleeve. the nut is tightened until the normal stress in the bolt
suppose an external torque t1 is applied to shaft 1 which has polar area moment of inertia j1. gear 1 is mounted on
a vapor compression refrigetarion cycle has a theoretical cop of 4.8 and provides 120000 btuh of cooling. the
a 3-kg stone is dropped from height h and strikes the ground with a velocity of 30ms. a determine the kinetic energy of
bananas are to be cooled from 24degc to 13degc at a rate of 215 kgh by a refrigeration system. the power input to the
a rigid container is separated into 2 compartments by a very thin solid membrane. one side initially holds 2 m3 of air
air at a velocity of 3 ms and 20 degrees c flows over a flat plate along its length. the plate is 100cm long 50 cm wide
Find a cylindrical container that is large enough that it takes at least one minute to drain (you may have to create an opening at or near the bottom that gives the right behavior.
two kg of a mixture having an analyis of on a mass basis of 30 nitrogen 40 carbon dioxide 30 oxygen is compressed
boxes are sitting on a conveyor belt as the conveyor is turned on moving the boxes toward the right. the belt reaches
an air intake duct has a 14x14 opening the duct is 18 long with an exaust opening at the other end that is 14x1 giving
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