Author Question: A spacecraft has captured and brought material to Earth from a comet. Indicate whether the ... (Read 19 times)

shofmannx20

  • Hero Member
  • *****
  • Posts: 562
A spacecraft has captured and brought material to Earth from a comet.
 
  Indicate whether the statement is true or false

Question 2

If a star was the same size as our Sun, but was 81 times more luminous, it must be
 
  A) twice as hot as our Sun.
  B) three times hotter than the Sun.
  C) four times hotter than the Sun.
  D) nine times hotter than the Sun.
  E) 81 times hotter than the Sun.



TheDev123

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

TRUE

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

For a complete list of videos, visit our video library