Back to 14.4 Archimedes’ Principle and Buoyancy

14.4 Exercise 12

Avg difficulty 2.5

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?

OpenStax University Physics Volume 1, 14.4 Archimedes’ Principle and Buoyancy, exercise 12

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