\( \mathrm{P} \) A block of wood weighs \( 12 \ldots \mathrm{kg} \) and has a relative densitv W...

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\( \mathrm{P} \)
A block of wood weighs \( 12 \ldots \mathrm{kg} \) and has a relative densitv
W \( 0.6 \). It is to be in water with \( 0.9 \) of its volume immersed. What weight of a metal is needed (a) if the metal is on the top of wood,
(b) if the metal is attached below the wood? \( [R D \) of metal \( =14] \).
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