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martins
Questions (1)
A book shelf contains x books.when 4/5 of the books are removed,I have 25 books left.how many
were on the shelf.please show ur
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Answers (1)
m-20g-0.02kg v-150ms/1 k.e-1/2mv2 k.e-1/2*0.02*150*150 1/2 to decimal- 0.5*0.02*150*150 225joules
