In Each of the Following Two Situations a Source Emits

question 4

Multiple Choice

In each of the following two situations a source emits sound with a frequency of 1000 Hz.In situation I the source is moving at 100 m/s toward an observer at rest.In situation II the observer is moving at 100 m/s toward the source, which is stationary.The speed of sound is 340 m/s.The frequencies heard by the observers in the two situations are:

• A)I: 1417 Hz; II: 1294 Hz
• B)I: 1417 Hz; II: 1417 Hz
• C)I: 1294 Hz; II: 1294 Hz
• D)I: 773 Hz; II: 706 Hz
• E)I: 773 Hz; II: 773 Hz

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Definitions:

Cervicis

Refers to muscles located in the neck region, specifically involved in movements and support of the cervical spine.

Pelvic Floor

The muscles and connective tissues that support the organs of the pelvis, including the bladder, intestines, and, in females, the uterus and vagina.

Pubococcygeus

A muscle of the pelvic floor that supports pelvic organs and is involved in controlling the flow of urine and contractions during orgasm.

External Anal Sphincter

This is a muscle that surrounds the anal canal, allowing control over the expulsion of feces from the body.