This topic contains a solution. Click here to go to the answer

Author Question: Which of the following statements about lunar phases is true? A) It is possible to have two full ... (Read 47 times)

future617RT

  • Hero Member
  • *****
  • Posts: 543
Which of the following statements about lunar phases is true?
 
  A) It is possible to have two full moons during November, but not during December.
  B) The full moon sometimes rises around midnight.
  C) The time between new moons is two weeks.
  D) The time from one new moon to the next new moon is the same as the time from first-quarter moon to third-quarter moon.
  E) It is possible to have two full moons during January, but not during February.

Question 2

In stars, helium can sometimes be fused into carbon and heavier elements (in their final stages of life). Why didn't the same fusion processes produce carbon and heavier elements in the early universe?
 
  A) By the time stable helium nuclei had formed, the temperature and density had already dropped too low for helium fusion to occur.
  B) Temperatures in the early universe were never above the roughly 100 million Kelvin required for helium fusion.
  C) Helium fusion occurred, but the carbon nuclei that were made were later destroyed by the intense radiation in the early universe.
  D) No one knowsthis is one of the major mysteries in astronomy.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mtmmmmmk

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

E

Answer to Question 2

A




future617RT

  • Member
  • Posts: 543
Reply 2 on: Jul 27, 2018
:D TYSM


softEldritch

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Excellent

 

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

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?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

For a complete list of videos, visit our video library