« previous next »

Author Question: The closest star to the Sun is named _______________. a. Proxima Centauri b. Sol c. Jupiter d. ... (Read 20 times)

jjjetplane

  • Hero Member
  • *****
  • Posts: 556
on: Jul 28, 2018
The closest star to the Sun is named _______________.
 a. Proxima Centauri
  b. Sol
  c. Jupiter
  d. Polaris

Question 2

If two protons are moved 3 times closer together, the electrical force between them is what factor of the original force?


LP

  • Sr. Member
  • ****
  • Posts: 302
Reply #1 on: Jul 28, 2018
Answer to Question 1

a

Answer to Question 2

9 times greater


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

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?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

star cluster NGC 6604 star cluster NGC 6604
Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror
Star Map Eastern Horizon Star Map Eastern Horizon
Star-Nosed Mole Star-Nosed Mole
A Binary Star System A Binary Star System
Mottled Sea Star (Evasterias troschelii) eating a clam, Alaska. Mottled Sea Star (Evasterias troschelii) eating a clam, Alaska.
Video: Bacteriophage (Virus) - Mice Experiment

For a complete list of videos, visit our video library