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 80 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?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

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?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Antifreeze in living organisms Antifreeze in living organisms
Some organisms used as models in genetic research Some organisms used as models in genetic research
Earth’s history spans 4.5 billion years. Geologists and paleontologists have pieced together the his Earth’s history spans 4.5 billion years. Geologists and paleontologists have pieced together the his
Pressure drop after 10 minutes on a normal port fuel-injection system. Pressure drop after 10 minutes on a normal port fuel-injection system.
The flammable range consists of the concentration of fuel that will burn in atmospheric oxygen—the ... The flammable range consists of the concentration of fuel that will burn in atmospheric oxygen—the ...
During a period of high power demand, the voltage output of the power company is reduced by ... During a period of high power demand, the voltage output of the power company is reduced by ...
Video: Pericarditis

For a complete list of videos, visit our video library