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

Author Question: Which of the following is not a conserved quantity? A) energy B) momentum C) angular momentum ... (Read 69 times)

pane00

  • Hero Member
  • *****
  • Posts: 579
on: Jul 27, 2018
Which of the following is not a conserved quantity?
 
  A) energy
  B) momentum
  C) angular momentum
  D) radiation

Question 2

In 1924, Edwin Hubble proved that the Andromeda Galaxy lay far beyond the bounds of the Milky Way, thus putting to rest the idea that it might have been a cloud within our own galaxy. How was he able to prove this?
 
  A) He proved this by observing individual Cepheid variable stars in Andromeda and applying the period-luminosity relation.
  B) He was able to measure the parallax of the Andromeda Galaxy.
  C) He found that the universe is expanding, and therefore concluded that Andromeda must lie outside our own galaxy.
  D) He was the first person ever to look through a telescope at the object we now call the Andromeda Galaxy.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ecox1012

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

D

Answer to Question 2

A


pane00

  • Member
  • Posts: 579
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

meganmoser117

  • Member
  • Posts: 303
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Sources of Energy in the United States Sources of Energy in the United States
Energy Balance Energy Balance
Mixing alcohol with caffeinated energy drinks can have dangerous consequences Mixing alcohol with caffeinated energy drinks can have dangerous consequences
Solving Energy Problem Solving Energy Problem
Ionization energy Ionization energy
A slice of cheese pizza has a caloric content of 150 Cal. If this energy could b A slice of cheese pizza has a caloric content of 150 Cal. If this energy could b
Video: Chemical Synapse Animation

For a complete list of videos, visit our video library