A Stationary Source Emits a Sound Wave of Frequency F

question 53

Multiple Choice

A stationary source emits a sound wave of frequency f.If it were possible for a man to travel toward the source at the speed of sound, he would observe the emitted sound to have a frequency of:

• A)0
• B)f/2
• C)2f/3
• D)2f
• E)infinity

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Definitions:

Alcoholics

Individuals who suffer from alcoholism, a chronic disease characterized by uncontrollable drinking and a preoccupation with alcohol.

Neural Tube Defects

Birth defects of the brain, spine, or spinal cord occurring when the neural tube does not close completely.

Anemia

A medical condition characterized by a deficiency in the number or quality of red blood cells, which impairs oxygen transport in the body.

Folate

A B-vitamin essential for red blood cell formation and for healthy cell growth and function.