Question

an iron nail sinks and a corck floats when placed on the surface of water because density of corck is​

Answer 1

Answer:

gravitational force or magnetic force or effect

Answer 2

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Answer:

An iron nail sinks and a cork floats when placed on the surface of water because density of cork is less than water.

Explanation:

ANSWER

A object with higher density than water would sink in water while with lower density would float.

As cork has lower density than water, it floats while nail with higher density sinks.