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

Author Question: Which of the following worlds has the greatest difference in temperature between its no atmosphere ... (Read 13 times)

jc611

  • Hero Member
  • *****
  • Posts: 552
on: Jul 27, 2018
Which of the following worlds has the greatest difference in temperature between its no atmosphere temperature and its actual temperature?
 
  A) Mercury
  B) Venus
  C) Earth
  D) the Moon
  E) Mars

Question 2

Which of the following correctly describes how the process of gravitational contraction can make a star hot?
 
  A) Gravitational contraction involves nuclear fusion, which generates a lot of heat.
  B) When a star contracts in size, gravitational potential energy is converted to thermal energy.
  C) Heat is generated when gravity contracts, because gravity is an inverse square law force.
  D) Gravitational contraction involves the generation of heat by chemical reactions, much like the burning of coal.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

eliasc0401

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

B


jc611

  • Member
  • Posts: 552
Reply 2 on: Jul 27, 2018
Excellent

alvinum

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

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

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Blue light is scattered more than other wavelengths by the gases in the atmosphere, giving the Earth Blue light is scattered more than other wavelengths by the gases in the atmosphere, giving the Earth
Measuring Oral Temperature Using an Electronic Thermometer Measuring Oral Temperature Using an Electronic Thermometer
This five-wire mass air flow sensor consists of a metal foil sensing unit, an intake air temperature ... This five-wire mass air flow sensor consists of a metal foil sensing unit, an intake air temperature ...
In plant fossils, stomatal density is used to estimate CO2 concentration in the atmosphere In plant fossils, stomatal density is used to estimate CO2 concentration in the atmosphere
Earth Atmosphere Earth Atmosphere
Negative Feedback and Temperature Control Negative Feedback and Temperature Control
Video: Hormonal regulation of pregnancy - week 1

For a complete list of videos, visit our video library