Geol105_Lecture_02

# Geol105_Lecture_02 - Violent Earth Geol 105 Lecture 2 Prof...

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Violent Earth Geol 105 Lecture 2 Prof. Jonathan M. Lees Room 313 Mitchell Hall Voice: (919) 962-0695 [email protected]

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STUDENTS MAY RECEIVE CREDIT FOR ONLY ONE OF THE FOLLOWING COURSES (NEW # [OLD #] ). GEOL 101 [11] INTRODUCTORY GEOLOGY GEOL 105 [13] VIOLENT EARTH GEOL 109 [18] EARTH CLIMATE AND LIFE THROUGH TIME GEOL 111 [41] PHYSICAL GEOLOGY FOR SCIENCE MAJORS IF YOU ALREADY HAVE CREDIT FOR 101 [11] , 109 [18] or 111 [41] STAND UP, WALK OUT OF THIS ROOM AND DROP THIS CLASS NOW .
3 Geol 105: Violent Earth Meet: TU-TH 12:30-1:45 pm TEXT: Abbott, P.L., Natural disasters , Boston, McGraw-Hill, 496 p.: GET any edition you can find Grading: Final Exam 40% 3 X 1 Hour Exams drop 1 exam, 30% each Office Hours: 9:30-10:30 AM TU-TH RM 313 Mitchell Hall TA – will announce TA HOURS To be announced Optional LAB = GEOL101L

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Stuff… Blackboard Exams cover material in Book AND Class Turn off Cell Phones No Food/Drinks in Class No Newspapers No computer games/IM-ing
Energy Sources on Earth Impacts Gravity Internal Heat Sun

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Simple Physics Sir Isaac Newton (around 1669) Newton’s Second Law F = MA Force = MASS X Acceleration Acceleration = rate of change of velocity Velocity = rate of change of position Work = Force X Distance Power = rate of change of energy
Gravity Force of Gravity is an attraction between two masses 2 2 1 r m Gm F g =

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Numerical Example G = 6.7x10 -11 Nm 2 /kg 2 • M e = 6x10 24 kg • M moon = 7 x 10 22 kg M LEES = 80 kg
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Geol105_Lecture_02 - Violent Earth Geol 105 Lecture 2 Prof...

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