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Kepler's first law of planetary motion:
"Each planet moves in an elliptical orbit
 
Kepler's second law of planetary motion:
The radius vector joining the planet to the sun covers equal areas in equal intervals of time.
 
Kepler's third law of planetary motion:

The square of the period of a planet is directly proportional to the cube of the radius of the semi major axis of the orbit.
 
Kilocalorie:
"The amount of energy required to raise the temperature of one kilogram of water by 1
 
Kinetic energy:
"The energy possessed by a body due to its motion
 

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