Physics

Problem

Mercury of density

13.6 \times 10^{3}\,\text{kg}\,\text{m}^{-3}

is contained in an open vessel. Find the pressure difference between points

A

and

B

that are

60\,\text{cm}

and

20\,\text{cm}

below the free surface, respectively. Express your answer in kPa. Take

g = 9.8\,\text{m}\,\text{s}^{-2}

. a)

80\,\text{kPa}

39\,\text{kPa}

53\,\text{kPa}

5.3\,\text{kPa}