AST201_winter2010_mreid_slideset3_v2_Bb_white

AST201_winter2010_mreid_slideset3_v2_Bb_white - 1/25/2010...

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1/25/2010 1 AST 201 Stars and Galaxies 1 AST 201, Winter 2010, University of Toronto, Dr. M. A. Reid The Sun AST 201, Winter 2010, University of Toronto, Dr. M. A. Reid 2 AST 201, Winter 2010, University of Toronto, Dr. M. A. Reid 3 AST 201, Winter 2010, University of Toronto, Dr. M. A. Reid 4
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1/25/2010 2 AST 201, Winter 2010, University of Toronto, Dr. M. A. Reid 5 Image credit: NASA/Trace AST 201, Winter 2010, University of Toronto, Dr. M. A. Reid 6 AST 201, Winter 2010, University of Toronto, Dr. M. A. Reid 7 pressure from heat generation pushes outward gravity pulls inward AST 201, Winter 2010, University of Toronto, Dr. M. A. Reid 8 E=mc 2
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1/25/2010 3 AST 201, Winter 2010, University of Toronto, Dr. M. A. Reid 9 energy mass AST 201, Winter 2010, University of Toronto, Dr. M. A. Reid 10 E m AST 201, Winter 2010, University of Toronto, Dr. M. A. Reid 11 E = m ? No, they have different units (Joules and kilograms) AST 201, Winter 2010, University of Toronto, Dr. M. A. Reid 12 E = mc 2
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1/25/2010 4 A single free-floating proton has a mass of 1.00728 u. AST 201, Winter 2010, University of Toronto, Dr. M. A. Reid 13 1.00728 u 1.00728 u 1.00728 u 1.00728 u 4.029 u, right? If you smash four of them together, you ought to get something with a mass of 4 x 1.00728 u = 4.029 u, right? But you don’t!
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This note was uploaded on 03/02/2010 for the course AST AST201 taught by Professor Mochnacki during the Spring '10 term at University of Toronto- Toronto.

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AST201_winter2010_mreid_slideset3_v2_Bb_white - 1/25/2010...

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