« previous next »

Author Question: It took two centuries for the Copernican model to replaced the Ptolemaic model because A) in ... (Read 96 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?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

A single-gene model explains Mendel’s ratios A single-gene model explains Mendel’s ratios
Marx's Model of Historical Change Marx's Model of Historical Change
How to fit an exponential model to data How to fit an exponential model to data
The Meselson–Radding model for homologous recombination The Meselson–Radding model for homologous recombination
A model of transcription initiation as deduced from the crystal structure of TFIIB complexed A model of transcription initiation as deduced from the crystal structure of TFIIB complexed
The threshold model explains the discontinuous distribution of some multifactorial traits. In this m The threshold model explains the discontinuous distribution of some multifactorial traits. In this m
Video: Interpreting a cladogram Animation

For a complete list of videos, visit our video library