Author Question: While watching a star, you see it moves 15 degrees across the sky. How long hav (Read 1113 times)

Melanie

  • Full Member
  • ***
  • Posts: 204
While watching a star, you see it moves 15 degrees across the sky.  How long have you been watching it?
A) 1 hour
B) 3 hours   
C) 15 minutes
D) 15 seconds
E) 1 minute



penza

  • Hero Member
  • *****
  • Posts: 1,022
Oh! I know the answer is A.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

For a complete list of videos, visit our video library