A Block of Wood of Mass 400 G and Density

question 45

Multiple Choice

A block of wood of mass 400 g and density 0.8 g/cm³ is floating on the surface of a liquid of density 1.3 g/cm³. What is the difference in mass of stone density = 1.9 g/cm³) that must be added to the block in order for the combination wood and stone) to be just submerged rather than only the wood to be submerged?

• A) 250 g
• B) 540 g
• C) 170 g
• D) 790 g
• E) 290 g

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Definitions:

Weighted Average Cost

A method of calculating the total cost of goods sold or assets that weighs each item's cost proportionately.

Face Value

The original value or principal amount of a security as stated by the issuer.

Weighted Average Cost

A method of calculating the average cost of inventory or cost of goods sold by weighting each item by its relevance or quantity.

Cost of Equity

The yield a business seeks to determine whether an investment fulfills its requirements for capital returns, frequently calculated through methods such as the Capital Asset Pricing Model (CAPM).