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Sophie Levenson
a) The mass of a body is a measure of the quantity of matter in it.
This was said by Lavoisier because of his discovery of the conservation of mass. This is judged by how much mass is within a product to determine the amount of matter in the reactant.
b) The mass of a body is its resistance to a change in motion.
This was said by Sir Isaac Newton because it mirrors his first law of motion. Which is a body at rest will stay at rest unless acted upon by an external force. This also has to do with inertia, and how a body only changes when a force to causes it to do so.
c) The mass of a body depends on its change in velocity.
Einstein's equation E=mc^2 represents his theory of mass-energy equivilance. C indicates the velocity, for it is the speed of light and is multiplied by the mass of the body.
"Antoine Lavoisier." Famous Scientists. famousscientists.org. 29 Aug. 2015. Web. 11/6/2017
<www.famousscientists.org/antoine-lavoisier/>.
"Isaac Newton." Famous Scientists. famousscientists.org. 20 Feb. 2015. Web. 11/6/2017
<www.famousscientists.org/isaac-newton/>.
http://www.physicsoftheuniverse.com/scientists_einstein.html
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