Physics, 15.04.2020 23:46 cococat7773
You are in charge of the evacuation and repair of a storage tank shaped like a horizontal circular cylinder and buried 4 meters underground. The length of the cylinder is 5 meters and the radius is 2 meters. The storage tank is full of benzene (density 876 kg/m3 ). A firm you contracted says it can empty the tank for 15 cents per Joule of work. Find the work required to empty the tank by pumping the benzene to an outlet 4 meters above the top of the tank. If you have $150, 000 budgeted for the job, can you afford to hire the firm? Calculate the total work as an integral.
Answers: 3
Physics, 22.06.2019 02:50
Steam is generated in a boiler of a cogeneration plant at 10 mpa and 450Ā°c at a steady rate of 5 kg/s. in normal operation, steam expands in a turbine to a pressure of 0.5 mpa and is then routed to the process heater, where it supplies the process heat. steam leaves the process heater as a saturated liquid and is pumped to the boiler pressure. in this mode, no steam passes through a condenser, which operates at 20 kpa. (a) determine the power produced in the turbine and the rate at which process heat is supplied in this mode. (b) determine the power produced in the turbine and the rate of process heat supplied if only 60 percent of the steam is routed to the process heater and the remainder is expanded to the condenser pressure. (3.32 mw; 9.69 mw; 4.25 mw; 5.82 mw)
Answers: 3
Physics, 22.06.2019 10:00
** urgent** the voltage across the primary winding is 350,000 v, and the voltage across the secondary winding is 17,500 v. if the secondary winding has 600 coils, how many coils are in the primary winding? a- 30 coilsb- 583 coilsc- 12,000 coilsd- 332,500 coils
Answers: 1
Physics, 22.06.2019 17:50
Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?
Answers: 1
You are in charge of the evacuation and repair of a storage tank shaped like a horizontal circular c...
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