Author Question: During the first moments of the big bang when elements could be created, nuclear fusion reactions ... (Read 84 times)

chads108

  • Hero Member
  • *****
  • Posts: 507
During the first moments of the big bang when elements could be created, nuclear fusion reactions made few heavy elements because
 
  a. all heavy nuclei are unstable.
  b. no stable nuclei exist with masses of 5 or 8 hydrogen masses.
  c. the helium nucleus is unstable.
  d. the temperature and density were too low.
  e. no nuclei heavier than helium could form since there weren't any electrons formed.

Question 2

Synchrotron radiation occurs when high-speed electrons move through a magnetic field.
 
  a. True
  b. False
  Indicate whether the statement is true or false



yuyiding

  • Sr. Member
  • ****
  • Posts: 357
Answer to Question 1

b

Answer to Question 2

True



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

For a complete list of videos, visit our video library