This topic contains a solution. Click here to go to the answer

Author Question: Why might the presence of a giant planet be both good and bad for life on a terrestrial planet in ... (Read 117 times)

xclash

  • Hero Member
  • *****
  • Posts: 681
Why might the presence of a giant planet be both good and bad for life on a terrestrial planet in another solar system?
 
  What will be an ideal response?

Question 2

If the distance between us and a star is doubled, its apparent brightness will decrease by a factor of four.
 
  Indicate whether the statement is true or false



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

pocatato

  • Sr. Member
  • ****
  • Posts: 333
Answer to Question 1

A giant planet can kick comets out of the inner solar system to an Oort-type cloud through gravitational encounters. This is good because it means that life on the inner planets can evolve without sterilizing giant impacts. A potential bad effect is that if a star does not blow away its surrounding disk of gas and dust soon enough, the giant planet may experience drag and migrate inwards, sweeping any inner planets into the central star. Observations of extrasolar planets appear to be examples of this migration process.

Answer to Question 2

TRUE




xclash

  • Member
  • Posts: 681
Reply 2 on: Jul 27, 2018
Wow, this really help


raenoj

  • Member
  • Posts: 340
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

For a complete list of videos, visit our video library