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 88 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?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

A fossil trilobite. A fossil trilobite.
The fuel level must be above 15% and below 85% before the EVAP monitor will run on most vehicles. The fuel level must be above 15% and below 85% before the EVAP monitor will run on most vehicles.
The demand for energy is met by burning coal and other fossil fuels The demand for energy is met by burning coal and other fossil fuels
Embryonic Period Embryonic Period
Preference in Different Organisms for Specific Glycine Codons Preference in Different Organisms for Specific Glycine Codons
Earth’s Early Atmosphere Earth’s Early Atmosphere
Video: Transcription - Introns and exons

For a complete list of videos, visit our video library