Answers: 3
Physics, 22.06.2019 02:50, lilybear1700
Steam is generated in a boiler of a cogeneration plant at 10 mpa and 450°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, 23.06.2019 01:00, asilverman
Are formed where bumps from two surfaces come into contact ?
Answers: 1
Physics, 23.06.2019 02:20, addisonrausch
Aman is trying to drag a small tree that he cut down. if the static coefficient of friction of the tree on the ground is 0.5 and the tree weighs 670 n, what is the minimum amount of horizontal force that the man will need to apply so that the tree will start moving? o a. 465 n o b. 230 n o c. 670 n o d. 335 n
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Physics, 23.06.2019 18:30, davisz23
Un satélite artificial de un planeta x tiene un periodo de 8 horas y está colocado a una distancia de 50000 km del centro del planeta. a) ? cuál es la masa mx del planeta? b) ? cuál es el valor de la aceleración de la gravedad del planeta a la distancia en que está colocado el satélite? c) ? cuál es la velocidad orbital del satélite? d) si la masa ms del satélite es de 200 kg ? cuál es su energía de enlace?
Answers: 1
một chiếc huyền đang chạy ngược với vận tốc 25km/h so với bờ . biết vận tốc của nước là 2km/h .tính...
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