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

Author Question: A car is approaching a radio station at a speed of 25.0 m/s. If the radio station broadcasts at a ... (Read 178 times)

cartlidgeashley

  • Hero Member
  • *****
  • Posts: 572
on: Jul 29, 2018
A car is approaching a radio station at a speed of 25.0 m/s. If the radio station broadcasts at a frequency of 74.5 MHz, what change in frequency does the driver observe?
 
  A) 98.3 Hz
  B) 6.21 Hz
  C) 726 Hz
  D) 67.0 Hz
  E) 64.5 Hz

Question 2

Two people are talking at a distance of 3.0 m from where you are and you measure the sound intensity as 1.1  10-7 W/m2. Another student is 4.0 m away from the talkers. What sound intensity does the other student measure?
 
  A) 6.2  10-8 W/m2
  B) 1.5  10-7 W/m2
  C) 8.3  10-8 W/m2
  D) 7.8  10-7 W/m2
  E) 2.5  10-8 W/m2


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Amiracle

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

A


cartlidgeashley

  • Member
  • Posts: 572
Reply 2 on: Jul 29, 2018
:D TYSM

Zebsrer

  • Member
  • Posts: 284
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Charles Darwin may be dead and gone but a recent write-in campaign has pitted him against Republican Charles Darwin may be dead and gone but a recent write-in campaign has pitted him against Republican
A steady needle reading that drops 2 or 3 inches Hg when the engine speed is increased slightly ... A steady needle reading that drops 2 or 3 inches Hg when the engine speed is increased slightly ...
Memory saver. The part numbers represent components from Radio Shack®. Memory saver. The part numbers represent components from Radio Shack®.
An Enzyme in Action Enzymes speed up reactions in your body An Enzyme in Action Enzymes speed up reactions in your body
The 300-meter Radio Telescope at Arecibo, Puerto Rico The 300-meter Radio Telescope at Arecibo, Puerto Rico
Donut station Donut station
Video: Hormonal regulation of pregnancy - weeks 2 through 38

For a complete list of videos, visit our video library