physics 4 finalPaper

physics 4 finalPaper - Physics #4 2/14/06 The Universal...

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Physics #4 2/14/06 The Universal Gravitational Constant (G) Isaac Newton’s Law of Universal Gravitation states that any two objects attract each other with a force equal to the product of their masses divided by the square of their separation times a constant of proportionality, called G (http://www.answers.com/ topic/gravitational-constant.)The precise value of G was determined experimentally by Henry Cavendish in the century after Newton's death. G = 6.67 x 10 -11 N m 2 /kg 2 ( http://www.npl.washington.edu/eotwash/gconst.html .) Newton compared the acceleration of the moon to the acceleration of objects on earth. Hypothesizing that gravitational forces were responsible for the acceleration of the moon and the earth, Newton was able to draw an important conclusion about the dependence of gravity upon distance. However Newton did not attribute distance as the only variable effecting gravitational force. Newton knew that the force that caused an apple's acceleration (gravity) must be dependent upon the mass of the apple. Therefore, if the
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This note was uploaded on 04/07/2008 for the course PHYS 100 taught by Professor Noname during the Spring '06 term at Tulane.

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physics 4 finalPaper - Physics #4 2/14/06 The Universal...

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