A 15,000 kg rocket traveling at +230 m/s turns on its engines. Over a 6.0 s period it
burns 1,000 kg of fuel. An observer on the ground measures the velocity of the expelled
gases to be -1,200 m/s.
c. What impulse is applied to the rocket? Your answer will be in kg*m/s with no scientific
notation
Please help ASAP :)
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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?
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A 15,000 kg rocket traveling at +230 m/s turns on its engines. Over a 6.0 s period it
burns 1,000 k...
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