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

Author Question: As an electromagnetic wave travels through free space, its speed can be increased by: a. increasing ... (Read 34 times)

joe

  • Hero Member
  • *****
  • Posts: 627
on: Jul 28, 2018
As an electromagnetic wave travels through free space, its speed can be increased by:
 a. increasing its frequency.
  b. increasing its energy only.
  c. increasing both its energy and momentum.
  d. None of the above will increase its speed.

Question 2

Two cars, one in front of the other, are traveling down the highway at 25 m/s. The car behind sounds its horn, which has a frequency of 540 Hz. What is the frequency heard by the driver of the lead car? (vsound = 340 m/s)
 a. 463 Hz
  c. 579 Hz
  b. 540 Hz
  d. 500 Hz


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

reversalruiz

  • Sr. Member
  • ****
  • Posts: 327
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

B


joe

  • Member
  • Posts: 627
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

dawsa925

  • Member
  • Posts: 326
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

True-color view of Mars seen through NASA's Hubble Space Telescope in 1999 True-color view of Mars seen through NASA's Hubble Space Telescope in 1999
The thermodynamics of protein folding depicted as a free-energy funnel The thermodynamics of protein folding depicted as a free-energy funnel
Spitzer Space Telescope Spitzer Space Telescope
Human Memorabilia in Space Human Memorabilia in Space
Tidal and wave power Tidal and wave power
The Visible Spectrum of Electromagnetic Energy The Visible Spectrum of Electromagnetic Energy
Video: Inflammatory response Animation

For a complete list of videos, visit our video library