In Which One of the Following Situations Will There Be

question 74

Multiple Choice

In which one of the following situations will there be an increase in kinetic energy?

• A)A projectile approaches its maximum height.
• B)A ball starts from rest and freely rolls downhill.
• C)A box is pulled across a rough floor at constant speed.
• D)A satellite travels in a circular orbit around the earth at fixed altitude.
• E)A stone at the end of a string is whirled in a horizontal circle at constant speed.

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Definitions:

Enols

Organic compounds containing a hydroxyl group directly bonded to a carbon atom that is double-bonded to another carbon atom.

Ketones

Ketones are organic compounds characterized by a carbonyl group (C=O) linked to two carbon atoms. They are part of many biological and synthetic substances.

Diastereomers

Stereoisomers that are not mirror images of each other, differing in the arrangement of atoms in space, impacting physical properties and reactivity.

Tautomers

Isomers of organic compounds that readily interconvert, typically differing by the placement of a proton and the double bond.