Chapter 8.1, Problem 8.2E

Interpretation Introduction

Interpretation:

Reason for why a hand-driven pump on water well cannot pull underground water from depths more than $33ft$ has to be given and whether having a motor-driven vacuum pump would help has to be explained.

Concept Introduction:

Height of liquid column can be determined using the densities of liquids in the mercury barometer,

  ${\text{d}}_{\text{Hg}}{\text{h}}_{\text{Hg}}{\text{ = d}}_{liq}{\text{h}}_{liq}$

Where d is the density and h is the height of the liquid in barometer.

Unit conversion:

  $\begin{array}{c}1\text{ m = 1000 mm}\\ \\ \text{1 m = 3}\text{.281 ft}\\ \\ 1\text{ atm = 760 Torr = 760}\text{mm}\text{Hg}\end{array}$