The $\sqrt { \text { str } } = 12 + 20 ($

question 10

Multiple Choice

The $\sqrt { \text { str } } = 12 + 20 ($ dia $)$ can be used to predict the breaking strength of a rope (in pounds) from its diameter (in inches) . According to this model, how much force should a rope onehalf inch in diameter be able to withstand?

• A) \(16 \mathrm { lbs }\)
• B) \(22 \mathrm { lbs }\)
• C) \(4.7 \mathrm { lbs }\)
• D) \(256 \mathrm { lbs }\)
• E) \(484 \mathrm { lbs }\)

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Definitions:

Iron Sulfide

A chemical compound consisting of iron and sulfur, often found in the Earth's crust, and used in various industrial applications.

Carbon Monoxide (CO)

A colorless, odorless, and poisonous gas produced by the incomplete burning of carbon-containing fuels.

Protocell

An early, simple, cellular structure that is considered a precursor of true cells, possibly forming the basis for the origin of life.

Organic Molecules

Compounds mainly containing carbon and hydrogen, often including oxygen, nitrogen, and other elements, foundational to life.