A Steel Ball Sinks in Water but Floats in a Pool

question 59

Multiple Choice

A steel ball sinks in water but floats in a pool of mercury,which is much denser than water.Where is the buoyant force on the ball greater?

• A)floating on the mercury
• B)submerged in the water
• C)It is the same in both cases.
• D)It cannot be determined from the information given.

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Definitions:

External Benefits

refer to positive effects of a transaction or activity on third parties who are not directly involved in the transaction.

Economic Efficiency

A situation in which resources are optimally allocated to serve each individual or entity in the best way while minimizing waste and inefficiency.

Market

A system or an environment where buyers and sellers interact to trade goods, services, or financial instruments.

Free-rider Problem

A situation where individuals consume goods or services without paying for them, which typically occurs with non-excludable and non-rival public goods.