Author Question: If the source moves, the wavelength of the sound in front of the direction of motion is ____________ ... (Read 48 times)

pragya sharda

  • Hero Member
  • *****
  • Posts: 566
If the source moves, the wavelength of the sound in front of the direction of motion is ____________ the wavelength behind the direction of motion.
 a. the same as c. smaller than
  b. larger than d. unrelated to

Question 2

A source emits sound at a fixed constant frequency f. If the source moves away from you faster than the speed of sound in air, the frequency that you hear is
 a. the same as f c. lower than f
  b. higher than f d. unrelated to f



Melissahxx

  • Sr. Member
  • ****
  • Posts: 304
Answer to Question 1

C

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

For a complete list of videos, visit our video library