« previous next »

Author Question: Tuning forks 1, 2, and 3 each have slightly different frequencies.When 1 and 2 are sounded together, ... (Read 178 times)

Zulu123

  • Hero Member
  • *****
  • Posts: 525
on: Jul 28, 2018
Tuning forks 1, 2, and 3 each have slightly different frequencies.When 1 and 2 are sounded together, a beat frequency of 3 Hz results. When 2 and 3 are sounded together, a beat frequency of 5 Hz results. If the frequency of 1 is 100 Hz, which of the following cannot be the frequency of 3?
 a. 92 Hz
  b. 95 Hz
  c. 98 Hz
  d. 102 Hz
  e. 108 Hz

Question 2

A fire engine approaches a wall at 5 m/s while the siren emits a tone of 500 Hz frequency. At the time, the speed of sound in air is 340 m/s. How many beats per second do the people on the fire engine hear?
 a. 0
  b. 15
  c. 29
  d. 63
  e. 250


ankilker

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Comparing allele and genotype frequencies in a population with the Hardy-Weinberg equation and a Pun Comparing allele and genotype frequencies in a population with the Hardy-Weinberg equation and a Pun
Recombinant Frequencies Recombinant Frequencies
The graph shows the effect of sonic tuning of the intake manifold runners. The longer runners ... The graph shows the effect of sonic tuning of the intake manifold runners. The longer runners ...
The default position for the throttle plate is in slightly open position. The servomotor then is ... The default position for the throttle plate is in slightly open position. The servomotor then is ...
Activating the tuning fork Activating the tuning fork
Human Aneuploidies and Frequencies at Birth Human Aneuploidies and Frequencies at Birth
Video: Replication of DNA and Chromosomes/ How do cells replicate their DNA? (Animation) no Audio

For a complete list of videos, visit our video library