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

Author Question: What information do scientists use to estimate the total mass of the Milky Way Galaxy? a. The size ... (Read 88 times)

daltonest1984

  • Hero Member
  • *****
  • Posts: 536
on: Jul 28, 2018
What information do scientists use to estimate the total mass of the Milky Way Galaxy?
 a. The size of the galaxy from end to end.
  b. The number of stars and planets thought to be in the galaxy.
  c. The mass of Earth.
  d. The diameter of the galaxy.
  e. The fact that all the stars in the galaxy rotate about a common point.

Question 2

Which is the BEST description of what causes tides?
 a. Tides are caused by the Moon's gravitational pull on the Earth.
  b. Tides are caused by earthquakes.
  c. Tides are caused by the rotation of the Earth.
  d. Tides are caused by the gravitational pull of the Earth-Moon system.
  e. Tides are caused by the Earth's gravitational pull on the Moon.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Chelseyj.hasty

  • Sr. Member
  • ****
  • Posts: 319
Reply #1 on: Jul 28, 2018
Answer to Question 1

e

Answer to Question 2

d


daltonest1984

  • Hero Member
  • *****
  • Posts: 536
Reply #2 on: Jul 28, 2018
Thank you!


Chelseyj.hasty

  • Sr. Member
  • ****
  • Posts: 319
Reply #3 on: Jul 28, 2018
Always glad to help...


« previous next »
 

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Mass Loss from a Supermassive Star Mass Loss from a Supermassive Star
The frontal sinus, an airfilled space just behind the brow, is a unique size and shape in each of us The frontal sinus, an airfilled space just behind the brow, is a unique size and shape in each of us
Using alert labels enables the medical staff to quickly identify important information such as ... Using alert labels enables the medical staff to quickly identify important information such as ...
Selected Complications of Total Parenteral Nutrition Selected Complications of Total Parenteral Nutrition
Surfing the Internet for nutrition information Surfing the Internet for nutrition information
Gravitational Force Due to a Distribution of Mass problem 2 Gravitational Force Due to a Distribution of Mass problem 2
Video: How Hemoglobin Picks Up and Delivers Oxygen

For a complete list of videos, visit our video library