Question: A simple compass can be made by placing a small bar magnet on a cork floating in water. (a) What fraction of a plain cork

A simple compass can be made by placing a small bar magnet on a cork floating in water.

(a) What fraction of a plain cork will be submerged when floating in water?

(b) If the cork has a mass of 10.0 g and a 20.0-g magnet is placed on it, what fraction of the cork will be submerged? 

(c) Will the bar magnet and cork float in ethyl alcohol?

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