1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Marina CMI [18]
3 years ago
14

Process of Science: Explaining the Motions of Planets. To ancient astronomers, the motions of the Sun, the Moon, and the stars s

eemed fairly simple. However, the motions of the planets, which were more complicated, were harder to account for. It was a challenge for astronomers to explain the observed motions of the planets and to relate those motions to variations in planetary brightness. Part A- Two competing models attempt to explain the motions and changing brightness of the planets: Ptolemy's geocentric model and Copernicus' heliocentric model. Sort the characteristics according to whether they are part of the geocentric model, the heliocentric model, or both solar system models.
Geography
1 answer:
Sedbober [7]3 years ago
8 0

Answer:

<u>Geocentric Model</u>: - this model is Earth Centered

-Retrograde motion is explained by epicycles

<u>Heliocentric Model</u>: - This model is Sun Centered

-Retrograde motion is explained by the orbital speeds of planets

<u>Both models</u>:- Epicycles and deferents help explain planetary motion

-Planets move in circular orbits and with uniform motion

-The brightness of a planet increases when the planet is closest to Earth

Explanation:

Retrograde motion is an apparent change in the movement of the planet through the sky. Ptolemy's model of the solar systems was geocentric, where the Sun, Moon, planets and start all orbit the Earth in perfectly circular orbits. However this perfectly circular orbits around the Earth did not explain the occasional retrograde motion of the planets. In the Copernicus' heliocentric model, retrograde motion of planets is naturally explained. The explanation for retrograde motion in a heliocentric model is that retrograde occurs roughly when a faster moving planet catches up to and passes a slower moving planet.

You might be interested in
Droughts can occur in any climate. <br> a. True<br> b. False
Montano1993 [528]
The answer should be true !
7 0
3 years ago
Write a short paragraph of about 150-300 words. Explain how the physical environment can limit human activities.Write a short pa
tatiyna

Answer:

Explanation:

Human activities affect the operation of physical environment processes, and the results rebound on the human world. The human factor is an important consideration in assessing climate, landform, and ecosystem changes. The physical environment provides resources and a platform to use those resources, but can also be a hazard to people. Therefore human impact as a subject is of special concern to physical geographers. This interest has developed from studying the impacts of the environment on human activities, to understanding the impacts of humans on the environment and attempting to reduce them. There is now overt recognition of the role of the human factor, wh ich is also reflected in an increase in applied work by physical geographers. The effects of human activit ies and physical environmental modifica tions range from being entirely local to global, and can be immediately evident or they may manifest slowly over time and become of concern at some time in the fu ture. The duration of the effects can be short-lived or everlasting. Many examples can be observed in our surrounding landscape. While this chapter describes and discusses only some of the impact of human presence in New Zealand, the conceptual context of humans as agents of environmental change

3 0
3 years ago
Read 2 more answers
Like surface water and groundwater, glaciers shape the land through erosion and deposition. Fill in the blanks to complete each
mote1985 [20]

Glaciers cause erosion by abrasion and [plucking].

The sediment deposited by glaciers is called [till].

When a chunk of ice left behind by a receding glacier melts, the water stays in the kettle, forming a [kettle lake].

6 0
3 years ago
NEED HELP QUICK which of the following are correct statements about the Indian subcontinent and East Asia​
barxatty [35]

Answer:

A, C and D  are the answers.

5 0
3 years ago
Read 2 more answers
What is the equivalent distance in nautical miles of one knot?
aleksklad [387]
One knot is equivalent to one nautical mile
7 0
3 years ago
Read 2 more answers
Other questions:
  • How is urban land use related to land value?
    11·1 answer
  • The Agriculture, Food, and Natural Resources career cluster is a group of careers focused on
    13·2 answers
  • What two mountain ranges are represented by the areas labeled C and D on the map above? A. the Arakan Yoma and the Annamese Cord
    14·1 answer
  • The Himalayas in South Asia or an example of what type of plate boundary
    14·2 answers
  • Early Colonial cities like Charleston, Savannah, and Augusta are build in a ?<br> pattern.
    6·1 answer
  • 2) Compare the size and population of South Asia to that of the United States. Which is larger in terms of population?
    5·1 answer
  • Study the map of US climate regions.
    15·2 answers
  • According to the textbook, the gas that is thought to be responsible for most of the human-
    7·1 answer
  • How do waves change as they approach the shore?
    15·2 answers
  • In the professor latilong activity, what information were you given to help you find each artifact? a. time zones b. continents
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!