« previous next »

Author Question: While watching a star, you see it moves 15 degrees across the sky. How long hav (Read 1096 times)

Melanie

  • Full Member
  • ***
  • Posts: 204
on: Aug 28, 2013
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
Reply #1 on: Aug 28, 2013
Oh! I know the answer is A.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Long-term studies of the Glanville fritillary butterfly, Melitaea cinxia, have provided exceptional Long-term studies of the Glanville fritillary butterfly, Melitaea cinxia, have provided exceptional
star cluster NGC 6604 star cluster NGC 6604
A Star with Three Planets A Star with Three Planets
A photograph of Commodore Matthew Perry in 1855 juxtaposed with a Japanese portrait of him. When Per A photograph of Commodore Matthew Perry in 1855 juxtaposed with a Japanese portrait of him. When Per
Levels of Processing Affects Long-Term but not Short-Term Memory Levels of Processing Affects Long-Term but not Short-Term Memory
Long division for polynomials Long division for polynomials
Video: Protein catabolism (Krebs cycle) and Protein anabolism (protein synthesis)

For a complete list of videos, visit our video library