Question

1. a rectangular solid piece of metal has a mass of 78.6 g. the dimensions are length = 8.9 cm, width = 3.7 cm, and height = 2.5 cm. what is the density?

Explanation:

Step1: Calculate volume of rectangular solid

The volume formula for a rectangular solid is $V = l\times w\times h$. Given $l = 8.9$ cm, $w = 3.7$ cm, and $h = 2.5$ cm. So $V=8.9\times3.7\times2.5=82.325$ $cm^{3}$.

Step2: Calculate density

The density formula is $
ho=\frac{m}{V}$, where $m = 78.6$ g and $V = 82.325$ $cm^{3}$. So $
ho=\frac{78.6}{82.325}\approx0.955$ g/$cm^{3}$.

Answer:

$0.955$ g/$cm^{3}$