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

Author Question: Because of the curvature of the earth, microwave systems that must travel over long distances need ... (Read 16 times)

TFauchery

  • Hero Member
  • *****
  • Posts: 500
on: Jul 7, 2018
Because of the curvature of the earth, microwave systems that must travel over long distances need ________.
 
  A) to operate at low frequencies
  B) to operate at high frequencies
  C) repeaters
  D) mirrors

Question 2

Electronic commerce is an interdisciplinary field.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sylvia

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 7, 2018
Answer to Question 1

C

Answer to Question 2

TRUE


TFauchery

  • Member
  • Posts: 500
Reply 2 on: Jul 7, 2018
Thanks for the timely response, appreciate it

nanny

  • Member
  • Posts: 313
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

The Monarch butterfly migrates large distances The Monarch butterfly migrates large distances
Greenstick Only one side of the shaft is broken, and the other is bent (like a greenstick); usually Greenstick Only one side of the shaft is broken, and the other is bent (like a greenstick); usually
the comet Encke riding along its pebbly trail of debris (long diagonal line) between the orbits of M the comet Encke riding along its pebbly trail of debris (long diagonal line) between the orbits of M
Examples of Ways That Different Types of Intersections of Two Line Segments Can Be Transformed into Examples of Ways That Different Types of Intersections of Two Line Segments Can Be Transformed into
A cutaway of a typical water pump showing the long bearing assembly and the seal. The weep hole is ... A cutaway of a typical water pump showing the long bearing assembly and the seal. The weep hole is ...
Video: Secondary and tertiary levels of protein structure Animation

For a complete list of videos, visit our video library