Question

An iron nail will sink whereas an iron tin will float. How is this principle applied to various ways used
in our life?
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Answer 1

Answer:

because floating and shinking depend on density of body

Explanation:

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Thank you

Answer 2

Answer:

An iron nail has lesser area so it sinks wheras an iron tin has more area so it floats .

Its principle is applied on making ships , making stripes of bags to reduce its pressure on shoulders of student , making knife a sharp end that is used to cut things , etc.

Hope it helps you .