Question

The U-tube contains a coloured liquid of density 9.6 x102 kg/m3. If the difference in height between the liquid levels in the two arms of the U-tube is 0.16m, calculate the excess pressure (above air pressure) in the cylinder. (Take g = 10 N/kg)​

Answer 1

Step-by-step explanation:

P = ρgh

P = (9.6×10² kg/m³) (10 N/kg) (0.16 m)

P = 1536 Pa

Rounded to two significant figures, the pressure is 1500 Pa, or 1.5 kPa.