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An unstable particle at rest breaks up into two fragments of unequal mass. The mass of the lighter fragment is equal to 2.40 multiply.gif 10-28 kg and that of the heavier fragment is 1.67 multiply.gif 10-27 kg. If the lighter fragment has a speed of 0.893c after the breakup, what is the speed of the heavier fragment?
Please show work.
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