What Is the Angle of Repose

question 3

Multiple Choice

What is the angle of repose?

• A)The angle of the slip plane from a slide
• B)The steepest angle at which a material remains at rest
• C)The angle of an inclined rock layer measured from a horizontal line
• D)The angle of plunge into the interior

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Definitions:

Esters

Organic compounds derived from carboxylic acids in which the hydrogen of the carboxyl group is replaced by a hydrocarbon group, often responsible for the sweet or fruity aromas and flavors of many fruits and flowers.

Aldehydes

Organic compounds characterized by a carbonyl group bonded to at least one hydrogen atom, making them highly reactive.

Carboxylic Acid Derivative

Compounds obtained by substituting the hydroxyl group in carboxylic acids with other functional groups like halides, amides, or esters.

β-Hydroxybutyronitrile

An organic compound featuring a hydroxyl group (–OH) and a nitrile group (–CN) on a four-carbon chain, positioned beta (β) to each other.