« previous next »

Author Question: Two speakers in an automobile emit sound waves that are in phase at the speakers. One speaker is 40 ... (Read 92 times)

imowrer

  • Hero Member
  • *****
  • Posts: 514
on: Jul 28, 2018
Two speakers in an automobile emit sound waves that are in phase at the speakers. One speaker is 40 cm ahead of and 30 cm to the left of the driver's left ear. The other speaker is 50 cm ahead of and 120 cm to the right of the driver's right ear. Which of the following wavelengths is(are) in phase at the left ear for the speaker on the left and the right ear for the speaker on the right?
 a. 10 cm
  b. 20 cm
  c. 650 cm
  d. All of the wavelengths listed above.
  e. Only the wavelengths listed in (a) and (b).

Question 2

Which of the following frequencies could NOT be present as a standing wave in a 2m long organ pipe open at both ends? The fundamental frequency is 85 Hz.
 a. 85 Hz.
  b. 170 Hz.
  c. 255 Hz.
  d. 340 Hz.
  e. 382 Hz.


Kaytorgator

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 28, 2018
Answer to Question 1

e

Answer to Question 2

e


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

imowrer

  • Hero Member
  • *****
  • Posts: 514
Reply #2 on: Jul 28, 2018
Thank you!


Kaytorgator

  • Sr. Member
  • ****
  • Posts: 345
Reply #3 on: Jul 28, 2018
Always glad to help...


« previous next »
 

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

The Upper Troposphere: Rossby Waves The Upper Troposphere: Rossby Waves
Processes of the Middle and Upper Troposphere: Rossby Waves and Vorticity Processes of the Middle and Upper Troposphere: Rossby Waves and Vorticity
How to plot a sine function containing an amplitude and phase-shift (Question 2 of 3) How to plot a sine function containing an amplitude and phase-shift (Question 2 of 3)
Oxidative phase of the pentose phosphate pathway Oxidative phase of the pentose phosphate pathway
Chromosomes replicate during the S phase Chromosomes replicate during the S phase
Video: Metaphase I Animation

For a complete list of videos, visit our video library