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

Author Question: Assume that the average rate of 1-km sized asteroids hitting the Earth is about 1 every million ... (Read 288 times)

burchfield96

  • Hero Member
  • *****
  • Posts: 610
on: Jul 27, 2018
Assume that the average rate of 1-km sized asteroids hitting the Earth is about 1 every million years. The chance of the Earth being hit by a 1-km sized asteroid in the next 100 years is about:
 
  A) one in ten thousand.
  B) one in a million.
  C) zero.
  D) one in 100 million.
  E) inevitable, it has to happen sometime.

Question 2

Galaxies contain less mass as dark matter than as visible stars.
 
  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

catron30

  • Sr. Member
  • ****
  • Posts: 297
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

FALSE


burchfield96

  • Hero Member
  • *****
  • Posts: 610
Reply #2 on: Jul 27, 2018
TY


catron30

  • Sr. Member
  • ****
  • Posts: 297
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

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.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Planets, Earth and Moon Planets, Earth and Moon
A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan
A compression gauge designed for the higher compression rate of a diesel engine should be used when ... A compression gauge designed for the higher compression rate of a diesel engine should be used when ...
Fertility, Mortality, and the Net Rate of Reproduction in Sweden Fertility, Mortality, and the Net Rate of Reproduction in Sweden
When viewed from the Earth, Venus subtends an angle of about 1 arcminute (1/60°) when it is at ... When viewed from the Earth, Venus subtends an angle of about 1 arcminute (1/60°) when it is at ...
Escape Speed from Earth Escape Speed from Earth
Video: Summary of glucose catabolism

For a complete list of videos, visit our video library