Physics, 05.07.2019 02:10 joelpimentel
An airplane starts its takeoff by moving at 1.7 m/s. the plane must then accelerate at 3.0 m/s2 for the next 30s to reach its final takeoff speed. to the nearest tenth of a kilometer, how far does the plane travel while accelerating to its takeoff speed?
Answers: 2
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Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.
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Physics, 23.06.2019 05:30
Aman jogs at a velocity of 2.5 m/s west for 1,200 s. he then walks at a velocity 1.0 m/s east for 500 s and then stops to rest . what is the displacement of man when he stops to rest?
Answers: 3
An airplane starts its takeoff by moving at 1.7 m/s. the plane must then accelerate at 3.0 m/s2 for...
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