This topic contains a solution. Click here to go to the answer

Author Question: When you plot the position of sun-like stars, you will find that ___. a. almost all sun-like ... (Read 53 times)

Evvie72

  • Hero Member
  • *****
  • Posts: 519
When you plot the position of sun-like stars, you will find that ___.
 
  a. almost all sun-like stars are found in spiral arms
 b. sun-like stars are found in and out of spiral arms
 c. sun-like stars are left behind by the spiral arms that created them
 d. sun-like stars are only found in the outer 2/3 of the disk
 e. sun-like stars are only found in the inner 2/3 of the disk

Question 2

What is the circular velocity of an object orbiting Earth at a distance of 100,000 km from Earth's center? Hint: ; G = 6.67 10-11 m3/s2/kg
 
  a. 0.2 m/s
 b. 2 m/s
 c. 20 m/s
 d. 200 m/s
 e. 2,000 m/s



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dellikani2015

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

b

Answer to Question 2

e



Evvie72

  • Hero Member
  • *****
  • Posts: 519
Both answers were spot on, thank you once again




 

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

For a complete list of videos, visit our video library