Physics, 28.12.2019 04:31 1UNIDENTIFIED1
Abread box is made to move along an x axis from x = 0.15 m to x = 1.20 m by a force with a magnitude given by f = e(-2x²), with x in meters and f in newtons. how much work is done on the bread box by the force?
Answers: 3
Physics, 21.06.2019 20:40
In a steady-flow steam power plant system, two adiabatic high-pressure and low-pressure turbines ane used to generate power. superheated steam enters the high-pressure turbine at 8 mpa and 550°c. the steam expands in the high-pressure turbine to a saturated vapor at 3 mpa. in order to increase the powe generation of the power plant, another steam turbine working in a lower pressure ranges is deployed. the outlet vapor from the first turbine is heated up at a boiler to the temperature of 500 c at the constant pressure of first turbine's outlet (3 mpa). then, the vapor enters the second turbine and produces extra work. the exit conditions of the second turbine are 5o kpa and 90 percent quality. if the total power output of the power plant is 25 mw, determine a) the mass flow rate of the water (kg/s). b) heat transfer rate in the boiler (mw). (30 points) 3 mpa 00 c 8 mpa s0 c high pres turbine low pres boiler turbine 50 kpa 3 mpa 09 saturated vapor t heat engine, shown in the figure, operates between high temperature and low temperature of through a heat 4. a carnot tn and tu respectively. this heat engine receives energy from a heat reservoir at t exchanger where the heat transferred is proportional to the temperature difference as ? = k (z,-7, ). it rejects heat at a given low temperature tl. to design the heat engine for maximum work output, find the high temperature, th, as a function of tes and t. (15 points) qe
Answers: 3
Physics, 22.06.2019 12:20
A2.0 μf capacitor and a 4.0 μf capacitor are connected in series across a 0.827-kv potential. the charged capacitors are then disconnected from the source and connected to each other with terminals of like sign together. find the voltage across each capacitor.
Answers: 2
Physics, 22.06.2019 13:10
Most short-period comets do not have randomly oriented orbits because
Answers: 2
Abread box is made to move along an x axis from x = 0.15 m to x = 1.20 m by a force with a magnitude...
Chemistry, 21.10.2020 14:01
History, 21.10.2020 14:01
Mathematics, 21.10.2020 14:01
Biology, 21.10.2020 14:01
Chemistry, 21.10.2020 14:01
Mathematics, 21.10.2020 14:01
Health, 21.10.2020 14:01
Computers and Technology, 21.10.2020 14:01
Mathematics, 21.10.2020 14:01
World Languages, 21.10.2020 14:01
English, 21.10.2020 14:01