This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following best describes what we mean by the universe? A) a vast collection of stars ... (Read 62 times)

leo leo

  • Hero Member
  • *****
  • Posts: 566
on: Jul 27, 2018
Which of the following best describes what we mean by the universe?
 
  A) a vast collection of stars that number as many as the grains of sand on all the beaches on Earth
  B) the sum total of all matter and energy
  C) all the galaxies in all the superclusters
  D) The universe is another name for our Milky Way Galaxy.

Question 2

The star Rho Cancri B has about the same mass as our Sun, and the planet discovered around it orbits somewhat closer than Mercury orbits our Sun. The mass of the planet is estimated to be 1.1 times the mass of Jupiter.
 
  Why, according to our theory of solar system formation, is it surprising to find a planet the size of Rho Cancri B's planet orbiting at this distance?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bigcheese9

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

In the nebular theory, jovian planets form beyond the frost line. In our solar system, this was beyond the orbit of Mars, so it is surprising to find a jovian planet orbiting so close to its star.


leo leo

  • Hero Member
  • *****
  • Posts: 566
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


bigcheese9

  • Sr. Member
  • ****
  • Posts: 333
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Amazing NASA Pictures Collection Amazing NASA Pictures Collection
Stars and the Interstellar Medium Stars and the Interstellar Medium
Video: Exercise and cardiac output

For a complete list of videos, visit our video library