Author Question: While watching a star, you see it moves 15 degrees across the sky. How long hav (Read 1097 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?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

For a complete list of videos, visit our video library