Buoyancy: a Rock Is Suspended from a Scale Reads 20

question 39

Multiple Choice

Buoyancy: A rock is suspended from a scale reads 20.0 N. A beaker of water (having a density of 1000 kg/m³) is raised up so the rock is totally submerged in the water. The scale now reads 12.5 N. What is the density of the rock?

• A) 1.60 × 10³ kg/m³
• B) 2.50 × 10³ kg/m³
• C) 2.33 × 10³ kg/m³
• D) 3.00 × 10³ kg/m³
• E) 2.67 × 10³ kg/m³

---

Definitions:

Efficient Capital Market

A market in which securities' prices fully reflect all available information, making it impossible to consistently achieve higher returns without taking additional risks.

Income Component

Income Component pertains to the portion of a financial product's return that is generated from the payment of interest or dividends.

Capital Gain

The profit earned from the sale of an asset like stocks, bonds, or real estate, which exceeds its purchase price.

Asset Classes

Categories of investments that exhibit similar characteristics, behaviors on the market, and are subject to the same laws and regulations.