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AQA A2 fusion question
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Je2
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I'm doing question 3 b) iii/ and I understand the equation that the mark scheme uses but I don't understand how they get the final answer. They also use 3.1x10^(-13) as the value for the energy but in the previous question I worked it out as being around 8x10^(-14). 
http://filestore.aqa.org.uk/subjects...5-QP-JUN13.PDF
http://filestore.aqa.org.uk/subjects...W-MS-JUN13.PDF
Edit: I think I've posted this in the wrong place so I've reposted it again here http://www.thestudentroom.co.uk/show....php?t=2717755
http://filestore.aqa.org.uk/subjects...5-QP-JUN13.PDF
http://filestore.aqa.org.uk/subjects...W-MS-JUN13.PDF
Edit: I think I've posted this in the wrong place so I've reposted it again here http://www.thestudentroom.co.uk/show....php?t=2717755
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Stonebridge
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