If you place a block of wood in the water and the wood sinks until ¾ of it is submerged, then the density is?
I do not get how I am suppose to figure this question without more detail like the dimensions or mass of the block, can anyone help? The four choices are listed below.
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It doesn't matter the dimensions. Let's just assume it's a cube 1 cm on each side. It has displaced 3/4 of a cc of water, which has a mass of 3/4 of a gram.
So we now know the volume of the wood (because we assumed one), and we know the mass based on that assumed volume. The density is therefore known.
D = m / V
D = (0.75g) / 1cc