Chapter 1, Problem 75E

Interpretation Introduction

Interpretation:

The mass of the gold cylinder and the can of sand are to be calculated from the given values of length, radius and density. The possibility to set off the alarm by the thief is to be identified.

Concept introduction: The volume of a cylinder is calculated by the formula,
  $V=\text{π}{r}^{2}h$

The density is calculated by the formula,
  $\text{Density}=\frac{\text{Mass}}{\text{Volume}}$

To determine: The mass of gold cylinder, the possibility of thief to set off the alarm.