« previous next »

Author Question: How does convection transfer heat?[br][br][b][color=#FBB117]Question ... (Read 36 times)

abc

  • Hero Member
  • *****
  • Posts: 543
on: Jul 13, 2018
How does convection transfer heat?

Question 2

Radiocarbon dating is possible primarily because ____.
 A)the ratio of carbon-14 to carbon-12 in the atmosphere is constant
 B)carbon-14 is constantly being formed in the upper atmosphere
 C)living organisms selectively use carbon-13 and carbon-12
 D)organisms stop accumulating carbon-14 when they die
 E)carbon 14 decays to oxygen


parshano

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 13, 2018
Answer to Question 1

As a material is heated, it expands and its density decreases. The less dense material then rises. After rising some distance, the material begins to cool, contract, and become denser. The material sinks and returns to the original level where it will eventually be heated and rise again.

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

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

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Inheritance of Coat Color in Rabbits Inheritance of Coat Color in Rabbits
Malignant melanoma. This photograph demonstrates the highly characteristic color of this tumor. Malignant melanoma. This photograph demonstrates the highly characteristic color of this tumor.
Color mixtures of reflected pigment—subtractive process Color mixtures of reflected pigment—subtractive process
Color Vision Color Vision
C heck the description bcuz the question is too long. there is a file attached but it is the ... C heck the description bcuz the question is too long. there is a file attached but it is the ...
physics question number 5 - moving conductors physics question number 5 - moving conductors
Video: Magnetic resonance imaging (MRI)

For a complete list of videos, visit our video library