A Bat Emits a Sound at a Frequency of 39

question 26

Multiple Choice

A bat emits a sound at a frequency of 39.0 kHz as it approaches a wall.The bat detects beats with a frequency of 827 Hz between the sound it emits and the echo bouncing from the wall.What is the speed of the bat if the speed of sound in air is 343 m/s?

• A)2.7 m/s
• B)3.0 m/s
• C)3.6 m/s
• D)5.4 m/s
• E)9.0 m/s

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Definitions:

National Provider Identifier (NPI)

The name of the standard unique health identifier for health care providers.

Digits

Numerals from 0 to 9, the basic symbols used in counting and mathematics.

Date of Service

The specific day when a healthcare provider performed a service or treatment for a patient.

Insurance Adjustment

The process by which insurance claims are reviewed and settled, including the calculation of reimbursement amounts.