A Granular Substance Such as Sand Naturally Settles into a Cone-Shaped

A granular substance such as sand naturally settles into a cone-shaped pile when poured from a small aperture.Its height depends on the humidity and adhesion between granules.The angle of elevation of a pile, θ, is called the angle of repose.If the height of a pile of sand is 11 feet and its diameter is approximately 34 feet, determine the angle of repose.Round answer to nearest degree.

A) 29^o
B) 30^o
C) 31^o
D) 32^o
E) 33^o

Correct Answer:

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