In this example you need to calculate the volume of a very long, thin cylinder, that forms the inside of the pipe. The area of one end can be calculated using the formula for the area of a circle πr2. The diameter is 2cm, so the radius is 1cm. The area is therefore π× 12, ...
A rectangular container measuring {eq}20 \ cm \times 20 \ cm \times 30 \ cm {/eq} is filled with water. What is the mass of this volume of water in kilograms? Mass-Volume-Density Relationship: The quantity of the matter...