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Zoologists estimate that the average adult cheetah can run at a speed of 100 km/hr and that the average antelope can run at a speed of 65 km/hr. If the animals run along the same straight line, start at the same time, are each assumed to have constant acceleration and reach their respective top speeds in 4 seconds, at what distance must the cheetah relative to the antelope be when the chase begins if the cheetah catches the antelope in 15 seconds?
when the hydrofoil shown was tested the minimum pressure on the surface of the foil was found to be 70 kpa absolute
Model the earth as a sphere with a diameter of 8,000 miles. Using 14.7 psia as the average pressure at the earth's surface and ignoring variation in g with altitude, estimate the weight of the earth's atmosphere in lbf, and its mass in lbm.
it is fair to assume that the heat rejection from an otto cycle is typically to the ambient at a temperature tmin the
Given a simulator or actual device, identify if a control loop is in control or out of control and identify the information used to make the decision
plastics and other polymeric materials are expensive with respect to steel and are usually more costly than aluminum
A 9º wedge is inserted using a force of 1000 lbs. The static coefficient of friction between the wedge and the log is 0.50. Determine the force required to pull the wedge out.
a jet of air from a nozzle is blown at right angles against a wall in which a pressure tap is located. a manometer
a refrigerator operates with a coefficient of performance of 4.2 and requires an electrical input of 700 w. if the
A first class lever in static equilibruim has a 50 lb resistance force and 15 lb effort force. The lever's effort force is located 4 ft from the fulcrum. What is the actual mechanical advantage of the system?
a vertical stabilizing fin on a land-speed-record car is 1.65 m long and 0.785 m tall. the automobile is to be driven
Calculate the value of forces P and Q for each test using the method of sections technique.
water flows as two free jets from the tee attached to the pipe shown below. thenbspexit speed is 15 ms. if viscous
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