« previous next »

Author Question: It took two centuries for the Copernican model to replaced the Ptolemaic model because A) in ... (Read 90 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?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Original Model of Jupiter’s Belts and Zones Original Model of Jupiter’s Belts and Zones
Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f
A model for the operation of voltage-gated sodium channels. A model for the operation of voltage-gated sodium channels.
Induced-fit model of enzyme activity. Induced-fit model of enzyme activity.
A general model of the sensorimotor system. Notice its hierarchical structure, functional ... A general model of the sensorimotor system. Notice its hierarchical structure, functional ...
Phrenology model showing areas of the head overlaying brain regions that control different traits. I Phrenology model showing areas of the head overlaying brain regions that control different traits. I
Video: Homeostasis (range of body conditions, normal limits, mild stresses & severe stresses)

For a complete list of videos, visit our video library