« previous next »

Author Question: When four hydrogen nuclei fuse to make helium, a small amount of matter is lost. What is the mass ... (Read 45 times)

savannahhooper

  • Hero Member
  • *****
  • Posts: 576
on: Jul 27, 2018
When four hydrogen nuclei fuse to make helium, a small amount of matter is lost. What is the mass difference and energy generated? The mass of hydrogen and helium nuclei are 1.67  1027 kg and 6.646  1027 kg, respectively.
 
  a. 0.034  1027 kg, 3  1012 J b. 0.022  1027 kg, 2  1012 J
  c. 0.068  1027 kg, 6  1012 J d. 0.011  1027 kg, 1  1012 J

Question 2

Classical Greek astronomers believed the motions of the heavens could be described by uniform circular motion.
 
  a. True
  b. False
  Indicate whether the statement is true or false


Viet Thy

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 27, 2018
Answer to Question 1

a

Answer to Question 2

True


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Center of Mass of a Binary Star System Center of Mass of a Binary Star System
The Mass-Luminosity Relation The Mass-Luminosity Relation
Telomere length is related to the amount of time adults spend in leisure time activity. Source: Ada Telomere length is related to the amount of time adults spend in leisure time activity. Source: Ada
The greatest bone mass is found around age 30 for both men and women, with the later decline being f The greatest bone mass is found around age 30 for both men and women, with the later decline being f
Notice the small motor gear on the left drives a larger plastic gear (black), which then drives ... Notice the small motor gear on the left drives a larger plastic gear (black), which then drives ...
Major Types of Hydrogen Bonds Found in Biomolecular Interactions Major Types of Hydrogen Bonds Found in Biomolecular Interactions
Video: Glycolysis Animation

For a complete list of videos, visit our video library