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    http://filestore.aqa.org.uk/sample-p...1-QP-JUN16.PDF
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    In the paper question 6.3 the annihilation question, i don't understand why you would times the rest mass by 2, as annihilation is , energy = rest mass , however in the mark scheme they said that energy =2 rest mass. Mark scheme below.
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    http://filestore.aqa.org.uk/sample-p...W-MS-JUN16.PDF
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