 |
| ||
| |||
|
| Math Central | Quandaries & Queries |
|
Question from Brett, a student: What is inside radius, in centimeters of a coffee cup if it holds 350g of coffee when filled to a depth of 9.5 cm? Assume coffee has the same density of water, 1.00g/cm3. A numeric value is expected and not an expression. |
Hi Brett,
Since the density of coffee is 1.00 gram per cubic centimeter the 350 grams of coffee has a volume of 350 cubic centimeters.
The shape of the coffee in the cup is approximately a circular cylinder. What is the formula for the volume of a circular cylinder in terms of its radius and height. You know the volume and the height. Solve for the radius.
Penny
| ||
| ||
| ||
 |
 |
|
|
||
Math Central is supported by the University of Regina and the Imperial Oil Foundation.