This topic contains a solution. Click here to go to the answer

Author Question: As an electromagnetic wave travels through free space, its speed can be increased by: a. increasing ... (Read 53 times)

joe

  • Hero Member
  • *****
  • Posts: 627
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
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


alexanderhamilton

  • Member
  • Posts: 334
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

For a complete list of videos, visit our video library