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    How did everyone do? Can someone tell me about the question with helium atoms? I don't know if I've done it wrong
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    Anyone?
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    I thought it was an alright exam personally.

    For that helium question Im not sure if I did it right but I said that the total energy would be zero.

    Et = Ek + Egp
    Et = 0 so Ek = - Egp
    Ek = -(-GMm/r) so Ek = GMm/r
 
 
 
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