Physics, 29.08.2019 23:00, yessicasaenz9878
Acatapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 80.4 m/s at ground level. the engines then fire, and the rocket accelerates upward at 3.90 m/s2 until it reaches an altitude of 1130 m. at that point its engines fail, and the rocket goes into free fall, with an acceleration of −9.80 m/s2. (you will need to consider the motion while the engine is operating and the free-fall motion what is its velocity just before it hits the ground?
Answers: 1
Physics, 22.06.2019 18:10, coryowens44
Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70°c. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)
Answers: 1
Physics, 22.06.2019 18:30, CaptainKiller528
In the united states, tornadoes generally occur because of the freezing of ocean water underwater earthquakes meeting of cool and warm air masses shifting of warm and cool ocean currents
Answers: 1
Acatapult launches a test rocket vertically upward from a well, giving the rocket an initial speed o...
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