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# Physics/the size of the universe

Tashunca Katonca wrote at 2012-11-22 21:46:32
My answer starts thus: The Radius of the Universe is R^2 = 2/ kp, where k is a Newtonian constant of gravitation, and p is the average density of matter this could be from 1.29E-17 to 5E-30 it seems to change. I'm going to use the first value. Bear in mind that K/2 = 1.08E27. K = was calculated to be 2.16E27. If you let K/2 = variable Y then to find k = 2 * Y. Now multiply the variable Y * p and you arrived at the answer 13.99E9 years. If you have input on this let me know at rvwil66@hotmail.com

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#### James J. Kovalcin

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I am teaching or have taught AP physics B and C [calculus based mechanics & electricity and magnetism] as well as Lab Physics for college bound students. I have a BS in Physics from the University of Pittsburgh and a Master of Arts in Teaching from same. I have been teaching physics for 34 years. I am constantly updating my skills and have a particular interest in modern physics topics.