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

Author Question: At the end of the first fifteen minutes, the mass ratio of H/He created was about A) 50/50. B) ... (Read 82 times)

ss2343

  • Hero Member
  • *****
  • Posts: 548
on: Jul 27, 2018
At the end of the first fifteen minutes, the mass ratio of H/He created was about
 
  A) 50/50.
  B) 75/25.
  C) 27/73.
  D) 90/10.
  E) 1/4.

Question 2

Without telescopes or other aid, we can see the Moon because it
 
  A) emits visible light.
  B) emits thermal radiation.
  C) reflects infrared light.
  D) reflects visible light.
  E) glows through radioactive decay.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

rekilledagain

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

D


ss2343

  • Member
  • Posts: 548
Reply 2 on: Jul 27, 2018
Excellent

AngeliqueG

  • Member
  • Posts: 343
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

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.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
Compression ratio is the ratio of the total cylinder volume (when the piston is at the bottom of ... Compression ratio is the ratio of the total cylinder volume (when the piston is at the bottom of ...
Stronger threads are created by cold rolling a heat-treated bolt blank instead of cutting the ... Stronger threads are created by cold rolling a heat-treated bolt blank instead of cutting the ...
The Effect of Using a Ratio Scale The Effect of Using a Ratio Scale
Mass Wasting Forms Mass Wasting Forms
Finding the angle from a ratio (Part 1) Finding the angle from a ratio (Part 1)
Video: Protein Structure - Primary, Secondary, Tertiary and Quaternary

For a complete list of videos, visit our video library