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Introduction to Astronomy The Solar System

by: Torrey Lynch

Introduction to Astronomy The Solar System ASTR 101

Marketplace > University of North Carolina - Chapel Hill > Astronomy > ASTR 101 > Introduction to Astronomy The Solar System
Torrey Lynch
GPA 3.81


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Class Notes
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This 1 page Class Notes was uploaded by Torrey Lynch on Sunday October 25, 2015. The Class Notes belongs to ASTR 101 at University of North Carolina - Chapel Hill taught by Staff in Fall. Since its upload, it has received 22 views. For similar materials see /class/228836/astr-101-university-of-north-carolina-chapel-hill in Astronomy at University of North Carolina - Chapel Hill.


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Date Created: 10/25/15
NUCLEAR FUSION IN THE SUN 39 39 i W Llfetlme Of a Process 7 Fuel Consumption Rate Example Car With Fuel Tank 20 gallons 5 gallonshour 4 hours Number of Driving Hours Example Nuclear Fusion in Sun 2 X 1032gram3 6 X1014gramssec Note There are approximately 3 X 107 seconds per year Lifetime 3 X 1017seconds l X 1010years Total Mass of Sun 2 X 1033 grams but only inner 10 is hot enough for nuclear fusion of hydrogen to helium to take place Thus only 2 X 1032 grams of H are available as fuel Fuel Consumption Rate 6 X 1014 gramssecond rate at which Sun must fuse H into He to keep the Sun going WHERE DOES THIS FUEL CONSUMPTION RATE OF 6 X 1014 gramssecond COME FROM i Energy Consumption Rate Fuel consumptlon Rate i Energy Content per Gram of Fuel Nuclear Fusion E 0007mc2 for fusion of H into He Energy Content per Gram of Fuel 000702 63 x lolsergsgram Luminosity of Sun Energy Consumption Rate 4 X 1033 ergssec i 4X1033eTgS3ec i 14 807 i i 6 X gramsSec


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