The body, which is an iron box with straight edges, floats in the water so that its edges are flush with the water.

The body, which is an iron box with straight edges, floats in the water so that its edges are flush with the water. Initially, the temperature of the water and the box is 4 ° C. Then the water is heated. How will the interposition of the water and the capsule change during the heating process. Why?

A body immersed in a liquid is acted upon by the force of Archimedes:

FA = d * g * V, where

d is the density of the liquid, kg / m3;

g – acceleration due to gravity, 9.8 m / s2;

V is the volume of a body part immersed in a liquid, m3.

When heated, the density of water will decrease, respectively, the force of Archimedes acting on the box will decrease. The box will plunge deeper into the water. But since its edges at the initial moment of time were flush with the water level, the capsule will begin to sink.