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

Author Question: After nuclear reactions in the big bang had ended, about 25 of the mass of the Universe was in the ... (Read 62 times)

danielfitts88

  • Hero Member
  • *****
  • Posts: 535
on: Jul 27, 2018
After nuclear reactions in the big bang had ended, about 25 of the mass of the Universe was in the form of helium nuclei.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

Spicules can trigger communications blackouts and auroras on Earth.
 
  a. True
  b. False
  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

cloudre37

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 27, 2018
Answer to Question 1

True

Answer to Question 2

False


danielfitts88

  • Member
  • Posts: 535
Reply 2 on: Jul 27, 2018
Gracias!

samiel-sayed

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

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 U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Nuclear medicine bone scan showing metastatic tumors in the skeleton Nuclear medicine bone scan showing metastatic tumors in the skeleton
A Coronal Mass Ejection A Coronal Mass Ejection
Two transesterification reactions that result in splicing of exons in pre-mRNA Two transesterification reactions that result in splicing of exons in pre-mRNA
Diego Rivera, Man, Controller of the Universe. Diego Rivera, Man, Controller of the Universe.
Air-Mass Source Regions for North America Air-Mass Source Regions for North America
Calculate KP for the following reactions at the indicated temperature. Calculate KP for the following reactions at the indicated temperature.
Video: Cognitive development by Piaget (Preoperational stage or intelligence)

For a complete list of videos, visit our video library