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Q: The orbits of planets being elliptical was one the planetary laws developed by A. Kepler. B. Copernicus. C. Brahe. D. Ptolemy.
A: A. Kepler.
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User: An object has a mass of 120 kg on the moon. What is the force of gravity acting on the object on the moon? A. 20 N B. 196 N C. 12.24 N D. 1,176 N

User: The ratio of output power to input power, in percent, is called A. conductivity. B. efficiency. C. horsepower. D. work.

User: The orbits of planets being elliptical was one the planetary laws developed by A. Kepler. B. Copernicus. C. Brahe. D. Ptolemy.

Weegy: A. Kepler.
taben29|Points 777|

User: In a practical machine, the power output is _______ the power input. A. equal to B. larger than C. multiplied by D. smaller than

Weegy: C. smaller than
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Weegy: A. 5,362.56 N is the answer.
OxTornado007|Points 6899|

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Asked 7/26/2013 3:09:24 PM
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