Question

for the problems below, show all work and box your final answers. 1. a platinum bar measures 5.0 cm long, 4.0 cm wide, and 1.5 cm thick. it has a mass of grams. a. calculate the volume of the platinum bar.

Explanation:

Step1: Recall volume formula

The volume $V$ of a rectangular - prism (which the platinum bar is) is given by $V = l\times w\times h$, where $l$ is the length, $w$ is the width, and $h$ is the height (or thickness).

Step2: Substitute values

Given $l = 5.0\ cm$, $w = 4.0\ cm$, and $h = 1.5\ cm$. Then $V=5.0\times4.0\times1.5$.

Step3: Calculate the product

$5.0\times4.0 = 20$, and $20\times1.5=30$. So $V = 30\ cm^{3}$.

Answer:

$30\ cm^{3}$