Question

A body of mass 3kg and volume 4×10–⁴m³ is hung from a balance graduated in newtons. What is the reading of the balance when the body is: (a) in air (b) fully immersed in water (c) …" immersed in water (d) fully immersed in paraffin? (Density of water = 1000kgm–³, density of paraffin = 800kg m³)

1) The reading of the balance is 29.4 N in air.
2) The reading of the balance is 19.6 N when fully immersed in water.
3) The reading of the balance is 24.5 N when …" immersed in water.
4) The reading of the balance is 15.7 N when fully immersed in paraffin.

Answer 1

The reading of the balance is 29.4 N in air, 19.6 N when fully immersed in water, 24.5 N when partially immersed in water, and 15.7 N when fully immersed in paraffin.

Step-by-step explanation:

When the body is in air, the reading of the balance is 29.4 N.

When the body is fully immersed in water, the reading of the balance is 19.6 N.

When the body is immersed in water, the reading of the balance is 24.5 N.

When the body is fully immersed in paraffin, the reading of the balance is 15.7 N.