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

Author Question: The fossil fuel deposits we use today are the remains of organisms from which period in Earth's ... (Read 75 times)

nenivikky

  • Hero Member
  • *****
  • Posts: 516
on: Jul 27, 2018
The fossil fuel deposits we use today are the remains of organisms from which period in Earth's history?
 
  A) The Cretaceous Period
  B) The Carboniferous Period
  C) The Cambrian Period
  D) The Archaean Eon

Question 2

What is the difference between center of gravity (cg) and center of mass (cm)? When are they the same?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

leeeep

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

The cm is at the average position of the masses and does not depend upon gravity. The cg is the average position of weights with each mass being weighted by the strength of gravity g. The cm and the cg are identical when g is the same for all the masses.


nenivikky

  • Hero Member
  • *****
  • Posts: 516
Reply #2 on: Jul 27, 2018
TY


leeeep

  • Sr. Member
  • ****
  • Posts: 315
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Photosynthetic Organisms Changed Earth's Atmosphere Photosynthetic Organisms Changed Earth's Atmosphere
Uranus revolves around the Sun once every 84 Earth years. Its average distance from the Sun is rough Uranus revolves around the Sun once every 84 Earth years. Its average distance from the Sun is rough
Throughout history, technology has had an impact on families. Today is no exception. Throughout history, technology has had an impact on families. Today is no exception.
A typical hydrogen fuel cell A typical hydrogen fuel cell
Earth Atmosphere Earth Atmosphere
Embryonic Period Embryonic Period
Video: Hormonal regulation of pregnancy - weeks 2 through 38

For a complete list of videos, visit our video library