Figure Q10.4 is a photograph of a graduated cylinder filled with four fluids. Starting with mercury on the bottom and going up, we have salt water, water, and vegetable oil. In addition, a solid object rests at the interface between each liquid. At the bottom is a steel ball bearing, next an egg, followed by a block of wood, and a table-tennis ball on top. (a) Rank these eight substances in terms of their densities from the highest to the lowest. (b) Which items have a specific gravity greater than 1? Less than 1?
(reference Q10.4)
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