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

Author Question: Which of these was a contribution of Newton to astronomy? A) Artificial satellites could be put ... (Read 95 times)

tsand2

  • Hero Member
  • *****
  • Posts: 520
on: Jul 27, 2018
Which of these was a contribution of Newton to astronomy?
 
  A) Artificial satellites could be put into orbit about the Earth.
  B) The Sun's gravity is greatest on a planet at perihelion, so the planet must speed up.
  C) The Moon pulls as strongly on us as we do on it.
  D) His differential calculus lets us calculate planetary motions more accurately.
  E) All of these were due to Newton's work.

Question 2

The angular size of an object depends on which two quantities?
 
  A) The object's actual size and its mass
  B) The object's distance from us and its brightness
  C) The object's actual size and its distance from us
  D) The object's brightness and its mass


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bookworm410

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

E

Answer to Question 2

C


tsand2

  • Member
  • Posts: 520
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

Dnite

  • Member
  • Posts: 297
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

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?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Astronomy Astronomy
Artificial Heart Device Artificial Heart Device
Contribution of enthalpy and entropy to several favorable processes Contribution of enthalpy and entropy to several favorable processes
What is the contribution of studying wing spot in the field? What is the contribution of studying wing spot in the field?
Sir Isaac Newton Sir Isaac Newton
Newton’s Law of Universal Gravitation Newton’s Law of Universal Gravitation
Video: How eudicots (true dicots) differ from monocots Animation

For a complete list of videos, visit our video library