Physics, 25.11.2020 09:00 am2garcia5
Which device is designed to convert chemical energy into kinetic energy ?
A. an A. C. Generator
B. A battery powered torch
C. a car engine
D. a wind-up mechanical clock
Answers: 2
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Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?
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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?
Answers: 1
Which device is designed to convert chemical energy into kinetic energy ?
A. an A. C. Generator
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