2. An airplane has an air velocity of 200 m/s (W). The wind velocity relative to the ground is 60 m/s [N]. K/U TAA (a) Determine the velocity of the airplane relative to the ground. (b) The airplane now faces a headwind of 60 m/s [E]. Calculate how long it takes the airplane to fly between two cities 300 km apart.
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Physics, 21.06.2019 20:00
The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is transformed ⇒ as it changes into other forms of energy.
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Physics, 21.06.2019 23:30
Edward tolman explained the results of his study by theorizing that the rats were learning about the maze during every trial but they a. were agitated because other groups were getting reinforcement b. could not remember how to demonstrate it without reinforcement c. were not motivated to demonstrate it without reinforcement d. seemed to be too lazy to actually work without reinforcement
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Physics, 22.06.2019 01:20
Un jugador de beisbol batea un foul recto en el aire.la pelota deja el bate con una rapidez de 120 km/h. en ausencia de resistencia del aire. ? cual sera la rapidez de la pelota cuando la atrape el catcher
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Physics, 22.06.2019 02:50
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
2. An airplane has an air velocity of 200 m/s (W). The wind velocity relative to the ground is 60 m/...
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