« previous next »

Author Question: It took two centuries for the Copernican model to replaced the Ptolemaic model because A) in ... (Read 87 times)

lidoalex

  • Hero Member
  • *****
  • Posts: 538
on: Jul 27, 2018
It took two centuries for the Copernican model to replaced the Ptolemaic model because
 
  A) in Copernicus' time, there were no telescopes.
  B) the Church wouldn't let anyone talk about Copernicus' model for 200 years.
  C) there was no scientific evidence to support either model until Galileo made his observations.
  D) the Ptolemaic model was simpler and more aesthetically pleasing.
  E) the Copernican model required complicated new terms to explain it correctly.

Question 2

Arcturus shows a large proper motion, almost perpendicular to the galactic plane. What Population does it belong to, and why?
 
  What will be an ideal response?


mjbamaung

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

Arcturus is the brightest Population II star in the sky, revealed by its lack of metals and its comet-like motion cutting across the galactic disk.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

lidoalex

  • Hero Member
  • *****
  • Posts: 538
Reply #2 on: Jul 27, 2018
Thank you!


mjbamaung

  • Sr. Member
  • ****
  • Posts: 343
Reply #3 on: Jul 27, 2018
Always glad to help...


« previous next »
 

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Bronchi Model Bronchi Model
Heart Model Heart Model
This chart illustrates the bottom up assumption about government. In this, attitudes, culture, and This chart illustrates the bottom up assumption about government. In this, attitudes, culture, and
A model for DNA replication A model for DNA replication
The attenuation model regulating the tryptophan operon The attenuation model regulating the tryptophan operon
Model of the CFTR protein Model of the CFTR protein
Video: Male Reproductive System - Testosterone

For a complete list of videos, visit our video library