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

Author Question: Regular atoms did not show up in the universe until when? What will be an ideal ... (Read 12 times)

lak

  • Hero Member
  • *****
  • Posts: 546
on: Jul 27, 2018
Regular atoms did not show up in the universe until when?
 
  What will be an ideal response?

Question 2

What is the most convincing piece of evidence to suggest that Martian meteorites actually come from Mars?
 
  A) they are igneous rocks
  B) they contain trapped gases with a similar composition to the Martian atmosphere
  C) they are red in color
  D) they show evidence for having been in contact with water


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Liddy

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jul 27, 2018
Answer to Question 1

A few hundred thousand years after the Big Bang, when decoupling allowed the energy to escape, and cooled off the matter until electrons could orbit protons at temperatures of less than 3000 K.

Answer to Question 2

B


lak

  • Member
  • Posts: 546
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

emsimon14

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Left: This web was woven by a 17-day-old spider, showing regular patterns. Right: This web was woven Left: This web was woven by a 17-day-old spider, showing regular patterns. Right: This web was woven
Compressing the breast between plates provides a better image of breast tissue. Regular mammograms ... Compressing the breast between plates provides a better image of breast tissue. Regular mammograms ...
How to calculate regular payments or deposits using the annuity formula (Question 1) How to calculate regular payments or deposits using the annuity formula (Question 1)
Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ... Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ...
For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately
Soybean plants in nitrogen-poor soil show how root nodules affect growth. Only the darker green plan Soybean plants in nitrogen-poor soil show how root nodules affect growth. Only the darker green plan
Video: Electrical Conduction System of the Heart

For a complete list of videos, visit our video library