(b) A specimen of an alloy of silver and gold, whose densities 10.50 and 18:90g/eme respectively, weighs 35.20g in air
and 33.13 g in water. Find the composition, by mass of the
alloy,
assuming that there has been no volence change in the
preess of prodhing the alloy.​

Iread this book last year so take this with a grain of salt.gene jumps from the tree to compete with finny due to the fact that gene is always trying to do better than finny. he is put under the grasp of peer pressure due to finny almost forcing him to do this. ever since he first jumped finny kept pressuring him to jump since he thought gene enjoyed jumping.rather than uses this answer you should probably just reread chapters 3-4

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Ke reqd to move from 0 to 50 will be proportional to 50x50 or 2500. this is equal to w.  to change vel from 50 to 150 you need energy prop to 22500 - 2500 = 20,000. this corresponds to 8w.  best answer is a) . work reqd is prop to velocity squared.