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

Author Question: The Doppler effect can reveal the rotation speed of a star by the splitting of the spectral lines. ... (Read 71 times)

K@

  • Hero Member
  • *****
  • Posts: 608
on: Jul 27, 2018
The Doppler effect can reveal the rotation speed of a star by the splitting of the spectral lines.
 
  Indicate whether the statement is true or false

Question 2

If the Sun-Earth separation were 10 AU instead of 1 AU, what would the ux of sunlight (energy per second per square meter) be at the Earth, compared to what it is today?
 
  A) 100 times more
  B) 10 times less
  C) about 3.16 (or the square root of 10 ) times less
  D) 10 times more
  E) 100 times less


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ally

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 27, 2018
Answer to Question 1

FALSE

Answer to Question 2

E


K@

  • Member
  • Posts: 608
Reply 2 on: Jul 27, 2018
:D TYSM

blakcmamba

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Alternative forms of surgeries involving the uterus, ovaries, and fallopian tubes. The solid lines i Alternative forms of surgeries involving the uterus, ovaries, and fallopian tubes. The solid lines i
The Serial Position Effect The Serial Position Effect
The Effect of Group Size on Relationships The Effect of Group Size on Relationships
The experimental system that permits observation of rotation in the F1 component of F1F0 ATP (b) The experimental system that permits observation of rotation in the F1 component of F1F0 ATP (b)
Astronaut Rachel leaves Earth in a spaceship at a speed of 0.960c relative to an observer on ... Astronaut Rachel leaves Earth in a spaceship at a speed of 0.960c relative to an observer on ...
An example of an allosteric effect An example of an allosteric effect
Video: Exercise and cardiac output & Definition of stroke volume

For a complete list of videos, visit our video library