« previous next »

Author Question: Approximately how long does it take the sun to go through a full cycle of passing above and below ... (Read 15 times)

bucstennis@aim.com

  • Hero Member
  • *****
  • Posts: 532
on: Jul 27, 2018
Approximately how long does it take the sun to go through a full cycle of passing above and below the plane of the galaxy?
 
  A) a few million years B) a few tens of millions of years
  C) a few thousand years D) a few hundred years

Question 2

A star is observed with a surface temperature of 3,000 K and a lumi nosity of 105 solar. What is the approximate radius of this star?
 
  A) 10 solar radii B) 103 solar radii
  C) 102 solar radii D) The radius cannot be determined.


Dnite

  • Sr. Member
  • ****
  • Posts: 297
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Conversion of pyruvate to acetyl CoA, the junction between glycolysis and the citric acid cycle. Conversion of pyruvate to acetyl CoA, the junction between glycolysis and the citric acid cycle.
Which is TRUE about the alternation of generations cycle that is diagramed above? Which is TRUE about the alternation of generations cycle that is diagramed above?
Endochondral ossification of long bone. Endochondral ossification of long bone.
How long does it take for 90% of a sample of strontium-90 (half-life of 28.8 years) to decay? How long does it take for 90% of a sample of strontium-90 (half-life of 28.8 years) to decay?
nitrogen cycle nitrogen cycle
A pipe that is 0.46 m long and open at both ends vibrates in the second overtone with a ... A pipe that is 0.46 m long and open at both ends vibrates in the second overtone with a ...
Video: Corpus Callosum Animation

For a complete list of videos, visit our video library