Physics, 26.06.2019 20:00 perezkeirax33K
A72.0-kg skydiver is falling at a terminal velocity of 79.0 m/s. which equation should be used to calculate the diver’s kinetic energy? e = mc2 me = ke + pe pe = mgh ke = ½mv2
Answers: 1
Physics, 22.06.2019 03:00
The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f
Answers: 2
Physics, 22.06.2019 16:30
The air in an automobile tire with a volume of 2.60 ft3 is at 70°f and 21 psig. determine the amount of air that must be added to raise the pressure to the recommended value of 30 psig. assume the atmospheric pressure to be 14.6 psia and the temperature and the volume to remain constant. the gas constant of air is ru = 53.34ft⋅lbflbm⋅r(1 psia144 lbf/ft2) = 0.3704 psia⋅ft3lbm⋅r the amount of air that must be added to raise the pressure is lbm
Answers: 3
Physics, 22.06.2019 17:50
Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?
Answers: 1
A72.0-kg skydiver is falling at a terminal velocity of 79.0 m/s. which equation should be used to ca...
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