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A 5oz baseball is 3 ft above te ground when it is stuck by a bat . The horizontal distance to the point where the ball strikes the ground is 180ft . The ball was moving approximately horizontally at 100ft/s before it was stuck , the duration of impact was 0.015 s and the ball was traveling 30 degrees above the horizontal after it was stuck . What was the magnitude of the average impulsive force exerted on the ball by bat ?
Assuming that 50% of the automobile accidents are due to a speed violation. a) What is the probability that among 10 automobile accidents at least 6 will be due mainly to a speed violation?
Some hypothetical alloy is composed of 12.5 wt% of metal A and 87.5 wt% of metal B. If the densities of metals A and B are 4.27 and 6.35 g/cm3, respectively, whereas their respective atomic weights are
We have a situation where hydrogen gas at 300 degrees C is flowing out of a tube at the rate of 100 mL/min. The tube is located in a fume hood operating at 25 degrees C and 1 atm.
A lagoon with volume 1200 m^3 has been receiving a steady flow of a conservative waste at a rate of 100m^3/day for a long enough time to assume that steady-state conditions apply
A lagoon with volume 1500 mg/m3 has been receivingsteady flow of non-conservative waste (reaction rake k = 0.20/day)at a rate of 125 m3/day for a long enough time to assume that steady- state conditions apply. The wasteentering the lagoon has a conce..
A 12 ft x 12 ft square area carrying a uniform load of 5000 lb/ft^2 s applied to the ground surface.Find the vertical stress increment due to the load at a depth of 25 ft below the center of the loaded area.
A car weighing 4000 pounds strikes the stopping barrier depicted below head on at a speed of 70 mph. The stopping force in the barrier is a function of how far the car penetrates into the barrier.
The solids in a specimen have a specific gravity of 2.65. If the oven-dry mass of the specimen is 25 kg, what is the volume of the solids in it
Using the Internet or any other available sources, define in your own words the meaning of “inertial reference frame” and “apparent force” associated with non-inertial reference frame. Give examples of apparent forces.
A bug is crawling up the leg of a man on a train. The velocity of the bug relative to the man is 0.3 m/s k . The mas is waling from one side of a carriage to the other with a vlocity relative to the train of 1.2 m/s j.
The bottom of a rectangular flume is 5m above reference level. The depth of the water in the flume is 3m. The average velocity is 1.7m/s. Compute the hydraulic energy at the surface of the water and at the bottom of the flume.
A nozzle discharges a stream of water with an initial velocity v0 of 50 ft/s into the end of a horizontal pipe of inside diameter d=5ft. determine the largest distance x that the stream can reach.
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