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What is the cranial capacity of man?...

What is the cranial capacity of man?

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(a)`AC=sqrt(AB^(2)+BC^(2))`
`where AB=1//2kmand BC=(AB)/(V_(mW).V_(w))`
put`v_(m)=4km//hr`, `v_(mw)=sqrt(v_(m)^(2)-v_(w)^(2))=sqrt(8^(2)-4^(2))=sqr48km//hr`
(b) `BC=((AB)/(V_(mw)))v_(w)=((AB)(V_(w)))/sqrt((V_(omega)^(2)-v_(w)^(2)))`
Put `AB=(1//2)km`, `v_(m)=4km//hr`,`v_(m)=8km//hr`t
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