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

Author Question: The occasional backward motion of the planets against the background of fixed stars is called _____. ... (Read 49 times)

kshipps

  • Hero Member
  • *****
  • Posts: 571
on: Jul 27, 2018
The occasional backward motion of the planets against the background of fixed stars is called _____.
 
  A) anterograde motion
  B) rotation
  C) oscillation
  D) retrograde motion

Question 2

Isaac Newton concluded that a force from Earth had to act on the Moon because:
 
  A) some force is needed to pull the Moon away from Earth.
  B) some force is needed to keep the Moon in a straight-line motion.
  C) some force is needed to keep the Moon in motion in its orbit.
  D) some force is needed to accelerate the Moon toward Earth.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

EAN94

  • Sr. Member
  • ****
  • Posts: 307
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

D


kshipps

  • Member
  • Posts: 571
Reply 2 on: Jul 27, 2018
Gracias!

Jossy

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Motion of the barycenter of the Solar System relative to the Sun Motion of the barycenter of the Solar System relative to the Sun
Current Positions of Known Dwarf Planets and SSSBs in the Outer Solar System Current Positions of Known Dwarf Planets and SSSBs in the Outer Solar System
Cosmic Microwave Background and the Curvature of Space Cosmic Microwave Background and the Curvature of Space
The Knee Joint: Anatomical Structures Influencing Motion The Knee Joint: Anatomical Structures Influencing Motion
Snap-ring pliers are also called lock-ring pliers, and they are designed to remove internal and ... Snap-ring pliers are also called lock-ring pliers, and they are designed to remove internal and ...
A company that makes cell phones has the following cost structure. They have fixed costs of ... A company that makes cell phones has the following cost structure. They have fixed costs of ...
Video: Mendel's pea plant, Pisum sativum experimental

For a complete list of videos, visit our video library