Two Life Preservers Have Identical Volumes, One Filled with Styrofoam

question 59

Multiple Choice

Two life preservers have identical volumes, one filled with Styrofoam and the other filled with sand. When the two life preservers are worn by swimmers, one swimmer floats with part of the preserver above water, and the other swimmer sinks. In this case the buoyant force is greater on the life preserver filled with

• A)Styrofoam.
• B)sand.
• C)same for both

---

Definitions:

Standard Deviation

A measure of the dispersion or variation in a set of data points, often used in finance to quantify the risk of an investment.

Positive Alpha

A metric indicating that an investment has performed better than its benchmark index, suggesting superior management or strategy.

Long Equity

An investment strategy where investors purchase stocks or equity securities with the expectation that their value will increase over time.

Hedge Fund

A private investment partnership that uses complex strategies and various instruments to achieve high returns.