Author Question: The speed for a low circular orbit about the Earth is about A) 1.7 104 km/s. B) 7.6 km/s. C) ... (Read 124 times)

fagboi

  • Hero Member
  • *****
  • Posts: 535
The speed for a low circular orbit about the Earth is about
 
  A) 1.7  104 km/s.
  B) 7.6 km/s.
  C) 2.1 km/s.
  D) 2.5  104 km/s.
  E) 17. km/s.

Question 2

Compared to the wavelength of a 400 Hz sound, the wavelength of a 200 Hz sound in air is
 
  A) four times as long.
  B) twice as long.
  C) the same.
  D) one-half as long.
  E) none of the above



kalskdjl1212

  • Sr. Member
  • ****
  • Posts: 353
Answer to Question 1

B

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

For a complete list of videos, visit our video library