A Source Emits Sound at a Fixed Constant Frequency F

question 19

Multiple Choice

A source emits sound at a fixed constant frequency f . If you run towards the source, the frequency you hear is

• A) the same as f.
• B) higher than f.
• C) lower than f.
• D) unrelated to f.

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Definitions:

Petty Cash Fund

A small amount of cash on hand used for covering minor or incidental expenses within a business.

Petty Cash Receipt

A document used to record small, miscellaneous expenses paid with petty cash funds.

Cash Equivalents

Short-term, highly liquid investments that are easily convertible into a known amount of cash and close to their maturity.

Commercial Paper

An unsecured, short-term debt instrument issued by corporations, typically for the financing of accounts receivable, inventories, and meeting short-term liabilities.