This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A factory siren indicating the end of a shift has a frequency of 80 Hz. What frequency is perceived ... (Read 83 times)

jazziefee

  • Hero Member
  • *****
  • Posts: 505
on: Jul 27, 2018
A factory siren indicating the end of a shift has a frequency of 80 Hz. What frequency is perceived by the occupant of a car traveling towards the factory at 30 m/s? The speed of sound in air is 343 m/s.
 
  A) 83 Hz
  B) 85 Hz
  C) 87 Hz
  D) 89 Hz
  E) 91 Hz

Question 2

Which color of light has the lowest energy photons?
 
  A) red
  B) yellow
  C) green
  D) blue
  E) orange


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

meltdown117

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

A


jazziefee

  • Member
  • Posts: 505
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

fatboyy09

  • Member
  • Posts: 358
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

A melanistic jaguar is a colour morph which occurs at about 6% frequency in populations. A melanistic jaguar is a colour morph which occurs at about 6% frequency in populations.
Chloride shift reaction Chloride shift reaction
Role of alternative splicing in the perception of sounds of different frequency Role of alternative splicing in the perception of sounds of different frequency
a) Shift your weight at the end of your reach. b) Avoid overreaching. a) Shift your weight at the end of your reach. b) Avoid overreaching.
How to find the phase shift from a graph? How to find the phase shift from a graph?
Classes and Frequency of Breast Cancer Susceptibility Genes Classes and Frequency of Breast Cancer Susceptibility Genes
Video: Structures that affect circulation - arterioles and vasomotor responses

For a complete list of videos, visit our video library