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

Author Question: Why didn't elements heavier than helium form in the first minutes of creation? A) When He-4 was ... (Read 75 times)

tfester

  • Hero Member
  • *****
  • Posts: 534
on: Jul 27, 2018
Why didn't elements heavier than helium form in the first minutes of creation?
 
  A) When He-4 was formed, the expansion cooled the cosmos below 100 million K.
  B) The first generation of stars used them up too quickly to observe them.
  C) The electrons slowed down enough to be captured into orbits by protons.
  D) There was not enough matter in the universe at that time.
  E) Only Type I supernovae can produce iron and heavier elements.

Question 2

Galileo's early telescopes revealed the four large moons of Jupiter, the rings of Saturn, and its large moon Titan.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Tabitha_2016

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

FALSE


tfester

  • Member
  • Posts: 534
Reply 2 on: Jul 27, 2018
Gracias!

tkempin

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i
Instructions for Completing the CMS-1500 (02/12) Claim Form Continued Instructions for Completing the CMS-1500 (02/12) Claim Form Continued
W-4 form used by employees to request IRS withholding. W-4 form used by employees to request IRS withholding.
Pressure drop after 10 minutes on a normal port fuel-injection system. Pressure drop after 10 minutes on a normal port fuel-injection system.
If 2.00 g of helium gas and 4.72 g of oxygen gas are mixed together, what is the mole fraction ... If 2.00 g of helium gas and 4.72 g of oxygen gas are mixed together, what is the mole fraction ...
Short form of amino acids Short form of amino acids
Video: Acid-base imbalances - compensation of metabolic acidosis and alkalosis

For a complete list of videos, visit our video library