A Block of Wood of Mass 400 G and Density

question 15

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)none of the above

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Definitions:

Financial Panics

Instances of widespread fear and anxiety among investors and the general public leading to rapid withdraws from banks or sell-offs in markets, often triggering economic downturns.

Open Market

A freely competitive market in which any buyer or seller can participate, and prices are determined by supply and demand.

Interest Rates

The cost of borrowing money, typically expressed as a percentage of the principal, which lenders charge borrowers for the use of their money.

Reserve Requirements

Regulations set by central banks determining the minimum amount of reserves that banks must hold against deposits.