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i am breaking my hsc in 3 years .. would it effect my Final UAI ? ... Started my Year 11 in 2007 In 2008 i am giving my Physics, Bussiness Studies and Esl In 2009 i am going to give Maths Ext1 or 2 ( not sure yet) and Accounting 2units And guyz .. what do u think ... is it a good...

But doesnt the vaue going to be zero when you are calculating it from planet. thanx .... that will do .. just wanted to check answer with you

Thanx for the solution mate: but , i think you misread the question: For Part 2:its suppose to be Finding GmM from the work done to move an object from "centre of the planet" m to 20,000,000 m given the work required is 1.0 MJ For Part 3 :its suppose to be Using GmM to calculate...

Can some one plzz do this .. http://img175.imageshack.us/img175/4403/18fx6.jpg