Pressure in liquids - Questions

1. What is the pressure due to the sea water at a depth of 150 m below the sea level if the density of sea water is 1020 kg m^-3?

(Given that g = 9.8 N kg^-1)

2. The diagram shows two different liquids, A and B, placed in 2 beakers. The pressure at the bottom of both liquids are P_A and P_B respectively.

If the density of liquid A is 1.5 g cm^-3 and P_{A =} P_B, calculate the density of liquid B.

Answers after the jump......


Answers:

1.     1.5 x 10⁶ Pa

2.     0.625 g cm^-3