A Really High-Speed Train Moves in a Direction Parallel to Its

question 4

Multiple Choice

A really high-speed train moves in a direction parallel to its length with a speed that approaches the speed of light.The height of the train,as measured by a stationary observer on the ground,

• A)approaches infinity.
• B)approaches zero.
• C)increases slightly.
• D)decreases slightly.
• E)does not change due to the motion.

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Definitions:

Hydrate

A compound typically formed by the absorption of water molecules into its structure, often resulting in a crystalline form.

PhCOCl

PhCOCl refers to benzoyl chloride, a colorless, fuming liquid with a pungent smell, used in organic synthesis, represented by the formula C6H5COCl.

Carbonyl Group

A functional group consisting of a carbon atom double-bonded to an oxygen atom (C=O) found in aldehydes, ketones, carboxylic acids, and esters.

Electrophilic

Describes a chemical species that is attracted to electrons and tends to accept electrons during chemical reactions.