#
**Problem**: A steel ball-bearing with a circumference of 32.5 mm weighs 4.20 g. What is the density of the steel in g/cm3 (V of a sphere = 4/3 πr3 ; circumference of a circle = 2πr)?

###### FREE Expert Solution

###### FREE Expert Solution

**Density **is defined as the mass of a substance contained per unit volume. In simpler words, density is a characteristic property of matter that defines how heavy or light it is. Heavier substances have greater densities than lighter substances.

**The formula for density is:**

###### Problem Details

A steel ball-bearing with a circumference of 32.5 mm weighs 4.20 g. What is the density of the steel in g/cm^{3} (V of a sphere = 4/3 πr^{3} ; circumference of a circle = 2πr)?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Density of Geometric Objects concept. You can view video lessons to learn Density of Geometric Objects Or if you need more Density of Geometric Objects practice, you can also practice Density of Geometric Objects practice problems .

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Schramm's class at Harding University.

What textbook is this problem found in?

Our data indicates that this problem or a close variation was asked in . You can also practice practice problems .