« previous next »

Author Question: What extrasolar planet discoveries were initially surprising? A) Jupiter-like planets orbiting ... (Read 30 times)

Mr3Hunna

  • Hero Member
  • *****
  • Posts: 536
on: Jul 27, 2018
What extrasolar planet discoveries were initially surprising?
 
  A) Jupiter-like planets orbiting very close to their stars
  B) planets with large eccentricities
  C) systems with only one planet
  D) A and B
  E) A and C
  F) B and C

Question 2

What is a protostar?
 
  A) a star that is still in the process of forming B) an intermediate-mass star
  C) a star that has planets D) a star in its final stage of life


nguyenhoanhat

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Mr3Hunna

  • Hero Member
  • *****
  • Posts: 536
Reply #2 on: Jul 27, 2018
Thank you!


nguyenhoanhat

  • Sr. Member
  • ****
  • Posts: 332
Reply #3 on: Jul 27, 2018
Always glad to help...


« previous next »
 

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

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?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Sunlight on Mars is dimmer than on Earth. This photo of a Martian sunset was imaged by Mars Pathfind Sunlight on Mars is dimmer than on Earth. This photo of a Martian sunset was imaged by Mars Pathfind
Microlensing Reveals an Extrasolar Planet Microlensing Reveals an Extrasolar Planet
Jupiter’s Magnetosphere Jupiter’s Magnetosphere
Digital Planet Tomorrow's Technology and You, Complete, 10E Digital Planet Tomorrow's Technology and You, Complete, 10E
Planet Earth compared to all its water and air! Planet Earth compared to all its water and air!
The decay constant of radon-222 is 0.181 d-1. If a sample of radon initially contains 6.00 × ... The decay constant of radon-222 is 0.181 d-1. If a sample of radon initially contains 6.00 × ...
Video: Lower Limb Arteries Animation

For a complete list of videos, visit our video library