Sound Waves in Air

question 27

Multiple Choice

Sound waves in air

• A)are longitudinal waves.
• B)are produced by something vibrating.
• C)undergo refraction when they pass through warm and cold air.
• D)All of the above.

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Definitions:

Quasi-contract

A legal concept where a court enforces an agreement between parties even though there is no actual contract between them, to prevent one party from being unjustly enriched.

Unjust

Not based on or behaving according to what is morally right and fair.

Unilateral Contract

A contract in which only one party makes an enforceable promise to perform an action, often in response to an act by the other party.

Offeree

The party to whom an offer is made in a contract negotiation, who has the power to accept or reject that offer.