What was the intial velocity of the ball
A physics student throws a bowling ball straight up into the air. THe ball was in the air for a total of 8.44 seconeds before it was caught at its orignial position. What was the intial velocity of the ball? And how high did it rise??
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The power output of the two-stage turbine is 80 MW and isentropic efficiency of each turbine stage is 84%. Calculate the rate of entropy generation (kW/K) for the two-stage turbine.
A hockey player makes a slap shot exerting a force of 30 N on a 0.115 kg hockey puck for 0.16 seconds. How fast is it moving after he hit the puck assuming it started from rest?
The facility is required to collect all the vented air and route it to a biofilter to control total emissions to less than 30 kg of ethanol per day. Calculate the required control efficiency.
Solar cells can produce 39.8 W of electricity per square meter of surface area if directly facing the Sun. How large an area is needed to supply the needs of a house that requires 23.3 kWh/day? (Assume that the Sun shines 8.64 hours per day.)
Calculate (a) the coal firing rate in lb/hr, (b) the fuel gas flow rate in scfm, and (c) the SO2 removal efficiency needed to meet a standard of 1.4 lb/MWh gross electrical energy output.
The following table contains the probability distribution for X = the number of retransmissions necessary to successfully transmit a 1024K data package through a double satellite media.
Markings to indicate length are placed on a steel tape in a room that is at a temperature of 22°C. Measurements are then made with the same tape on a day when the temperature is 27°C. Are the measurements too long, too short, or accurate?
An attack helicopter is equipped with a 20mm cannon tat fires 112 g shells in the foward derection with a muzzle speed of 743 m/s. The fully loaded helicopter has a mass of 1630 kg. A burst of 238 shells is fired in a 3.99 s interval. What is the
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Describe the history of social workers within community and organizational work. What would you describe as a major change or shift within the last 30 years?
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