« previous next »

Author Question: Tuning forks 1, 2, and 3 each have slightly different frequencies.When 1 and 2 are sounded together, ... (Read 194 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?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

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
A leak detection pump (LDP) used on some Chrysler vehicles to pressurize (slightly) the fuel ... A leak detection pump (LDP) used on some Chrysler vehicles to pressurize (slightly) the fuel ...
Effleurage with loose fist to left side of neck. Turn the head slightly to the right side, exposing ... Effleurage with loose fist to left side of neck. Turn the head slightly to the right side, exposing ...
Occipital press. Sitting at the recipient’s head, turn the head slightly to the left. Using the ... Occipital press. Sitting at the recipient’s head, turn the head slightly to the left. Using the ...
Tuning fork medical uses. Tuning fork medical uses.
Video: Causes of Acne

For a complete list of videos, visit our video library