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 278 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?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Mars oppositions from 2003-2018, viewed from above the ecliptic with the Earth centered Mars oppositions from 2003-2018, viewed from above the ecliptic with the Earth centered
The Typical Bureaucratic Structure of a Medium-Sized University The Typical Bureaucratic Structure of a Medium-Sized University
Geothermal energy and powers Earth’s systems Geothermal energy and powers Earth’s systems
Average Years of Schooling versus GDP per Capita Average Years of Schooling versus GDP per Capita
Earth Science is Environmental Science Earth Science is Environmental Science
For each function f(x) = 6x^2 - 4, estimate the instantaneous rate of change for the given ... For each function f(x) = 6x^2 - 4, estimate the instantaneous rate of change for the given ...
Video: The Krebs Cycle Animation

For a complete list of videos, visit our video library