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 275 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?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

How Orbital Eccentricity Changes the Amount of Solar Radiation Earth Receives How Orbital Eccentricity Changes the Amount of Solar Radiation Earth Receives
Situations Causing Changes in Respiratory Rate Situations Causing Changes in Respiratory Rate
Distance from Earth to Sun schematic Distance from Earth to Sun schematic
Average Global Temperatures Average Global Temperatures
Total Fertility Rate in the United States, 1860–2008 Total Fertility Rate in the United States, 1860–2008
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 ...
Video: Ciliate conjugation Animation

For a complete list of videos, visit our video library