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

Author Question: Sunspots often appear in pairs. a. True b. False Indicate whether the statement is true or ... (Read 99 times)

Mimi

  • Hero Member
  • *****
  • Posts: 542
on: Jul 27, 2018
Sunspots often appear in pairs.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

How did the geocentric model and the heliocentric model of the universe explain retrograde motion?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

BUTTHOL369

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 27, 2018
Answer to Question 1

True

Answer to Question 2

The geocentric model relied on epicycles to explain retrograde motion. In the heliocentric model, Earth moves faster along its orbit than the planets that lie farther from the Sun. Consequently, Earth periodically overtakes and passes these planets. The result is retrograde motion as observed from Earth.


Mimi

  • Member
  • Posts: 542
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

anyusername12131

  • Member
  • Posts: 327
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Interactions between these ion pairs, and between others Interactions between these ion pairs, and between others
True Forget-Me-Not True Forget-Me-Not
Functional MRI Scans These scans of human brains show localized average increases in neural activity Functional MRI Scans These scans of human brains show localized average increases in neural activity
Example of a patient statement. Example of a patient statement.
Correlations on tests for a number of cognitive abilities are higher for monozygotic twin pairs (who ... Correlations on tests for a number of cognitive abilities are higher for monozygotic twin pairs (who ...
Ball-and-stick models of A=T and G≡C base pairs Ball-and-stick models of A=T and G≡C base pairs
Video: Structure of Amino Acid, Peptide Bonds & Polypeptides

For a complete list of videos, visit our video library