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

Author Question: How and why would the noon Sun appear different to an observer on Mercury compared to one on Earth? ... (Read 30 times)

dakota nelson

  • Hero Member
  • *****
  • Posts: 604
How and why would the noon Sun appear different to an observer on Mercury compared to one on Earth?
 
  What will be an ideal response?

Question 2

The redshift of the galaxies is correctly interpreted as
 
  A) the differences in temperatures and star formation in old and young galaxies.
  B) a Doppler shift due to the random motions of galaxies in space.
  C) an aging of light as gravity weakens with time.
  D) space itself is expanding with time, so the photons are stretched while they travel through space.
  E) placing our Galaxy near the center of the Local Group.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Anna

  • Sr. Member
  • ****
  • Posts: 343
Answer to Question 1

Mercury's rotation axis is almost perpendicular to its orbit. This means the angle of the Sun with the southern (or northern) horizon never changes. On Mercury, an observer at the equator would always see the noon Sun overhead, an observer at the pole would always see it on the horizon. On Earth, the altitude of the Sun changes over the year because of the 23.5 degree axial tilt.

Answer to Question 2

D




dakota nelson

  • Member
  • Posts: 604
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it


coreycathey

  • Member
  • Posts: 333
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

For a complete list of videos, visit our video library