Take the Speed of Sound to Be 340 M/s

question 37

Multiple Choice

Take the speed of sound to be 340 m/s.A thunder clap is heard about 3 s after the lightning is seen.The source of both light and sound is:

• A)moving overhead faster than the speed of sound
• B)emitting a much higher frequency than is heard
• C)emitting a much lower frequency than is heard
• D)about 1000 m away
• E)much more than 1000 m away

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Definitions:

Railway Labor Act

A United States federal law that governs labor relations in the railroad and airline industries, facilitating dispute resolution and collective bargaining.

National Legislation

Laws and regulations enacted by a country’s legislative body that govern the actions and policies within that country.

Collective Bargaining

A method where labor unions and employers negotiate contracts to determine salaries, working hours, benefits, and other employment terms.

Samuel Gompers

A prominent labor union leader who founded the American Federation of Labor (AFL) and was instrumental in advocating for workers' rights.