A cubical copper block has each side 2.0 cm. It is suspended by a stri

1.	A cubical copper block has each side 2.0 cm. It is suspended by a string and submerged in oil of density 820 kg m-3 . Calculate the tension in the string.(density of copper = 8920 kg m-3)
Answer» Tension = True weight - upthrust due to oil = Vρg- Vσg = V(ρ - σ)g = (2 x 10^-2)³ x (8920 - 820) x 10 = 8 x 10^-6 x 8100 x 10

A cubical copper block has each side 2.0 cm. It is suspended by a string and submerged in oil of density 820 kg m-3 . Calculate the tension in the string.(density of copper = 8920 kg m-3)

Answer»

Tension = True weight - upthrust due to oil

= Vρg- Vσg = V(ρ - σ)g

= (2 x 10^-2)³ x (8920 - 820) x 10 = 8 x 10^-6 x 8100 x 10