Physics, 18.12.2019 02:31 jrynokenna
Arocket of mass m is launched from the surface of an asteroid by being bombarded by a stream of dust that was mined from the asteroid. the dust is ejected upward from the surface of the asteroid at a constant rate dm/dt ≡ r, and with a constant speed vd with respect to the asteroid. the rocket absorbs the dust, which just builds up in a storage compartment. find the speed of the spacecraft as a function of time. ignore the eect of gravity from the low mass asteroid, and assume that the asteroid is not rotating
Answers: 2
Physics, 22.06.2019 02:30
Power can be defined as a. the distance over which work was done. b. how much work can be done in a given time. c. all the work in an given area. d. the energy required to do work.
Answers: 1
Physics, 22.06.2019 05:00
Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.
Answers: 1
Physics, 22.06.2019 18:30
Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?
Answers: 1
Arocket of mass m is launched from the surface of an asteroid by being bombarded by a stream of dust...
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