The Horizontal Cross Sections at Height of a Tank

question 68

Short Answer

The horizontal cross sections at height of a tank are discs of radius . The height of the tank is 10 m.
The tank is filled with water, and the water drains through a square hole with a side of 10 cm at the bottom of the tank.
How long does it take for the tank to empty?

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Definitions:

Misallocated

Describes resources or efforts that are used inefficiently or inappropriately, leading to suboptimal outcomes.

Perfectly Competitive

A market structure characterized by a large number of small firms, homogeneous products, and free entry and exit, leading to price takers rather than makers.

Worthless Coin

A coin that has lost its value as currency, often due to hyperinflation or being phased out of circulation.

Inefficient Exchange

Occurs when there is a missed opportunity in the allocation of goods or services that could make at least one individual better off without making anyone else worse off.