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

Author Question: Is everything in the universe expanding? A) No, the Milky Way galaxy is not expanding. B) No, ... (Read 82 times)

ARLKQ

  • Hero Member
  • *****
  • Posts: 571
on: Jul 29, 2018
Is everything in the universe expanding?
 
  A) No, the Milky Way galaxy is not expanding.
  B) No, the distances between the galaxies are not expanding.
  C) Both of the above are correct.
  D) Yes.

Question 2

Under standard conditions, the density of air is 1.29 kg/m3. What is the mass of the air inside a room measuring 4.0 m  3.0 m  2.0 m?
 
  A) 0.32 kg
  B) 3.1 kg
  C) 31 kg
  D) 1.9 kg
  E) 19 kg


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 29, 2018
Answer to Question 1

A

Answer to Question 2

C


ARLKQ

  • Member
  • Posts: 571
Reply 2 on: Jul 29, 2018
Gracias!

phuda

  • Member
  • Posts: 348
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

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.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Spitzer Telescope Picture of a galaxy Spitzer Telescope Picture of a galaxy
Spiral Galaxies Seen Nearly Edge On from the Milky Way Spiral Galaxies Seen Nearly Edge On from the Milky Way
Dynamics of a Grand-Design Spiral Galaxy Dynamics of a Grand-Design Spiral Galaxy
Observable Universe Before and After Inflation Observable Universe Before and After Inflation
One target for expanding medical services involves vaccinations. Only 78 percent of children ages 19 ... One target for expanding medical services involves vaccinations. Only 78 percent of children ages 19 ...
Expanding Exponent Laws Expanding Exponent Laws
Video: Premenstrual Syndrome

For a complete list of videos, visit our video library