Chapter 3.3, Problem 38SP

Interpretation Introduction

Interpretation : The number of students that experiment is there is a 570-cm length of magnesium ribbon available is to be calculated.

Concept Introduction : An equivalent measurement ratio is referred to as a conversion factor. An effective approach for resolving conversion problems where measurement in one unit is changed to an equivalent measurement in another is dimensional analysis.

Answer to Problem 38SP

The number of students that experiment is $67\text{students}$ .

Explanation of Solution

Given information:

Each student uses an 8.5-cm length of magnesium ribbon.

The length of the magnesium ribbon is 570 cm.

To calculate the number of students that experiments, divide the length of the magnesium ribbon by each student’s length of the magnesium ribbon.

  $\begin{array}{c}\text{No}\text{. of student = }\frac{\text{570}\text{cm}}{8.5\text{cm}}\\ =67.058\\ \approx 67\text{students}\end{array}$