« previous next »

Author Question: Which was a contribution to astronomy made by Copernicus? A) The planets move around the Sun in ... (Read 44 times)

Wadzanai

  • Hero Member
  • *****
  • Posts: 528
on: Jul 27, 2018
Which was a contribution to astronomy made by Copernicus?
 
  A) The planets move around the Sun in elliptical orbits.
  B) His theory of gravity accounted for the variable speeds of the planets.
  C) He laid out the order and relative motion of the known solar system.
  D) He discovered the Sun was not at the center of the Milky Way.
  E) His telescope revealed the four moons of Jupiter, a model solar system.

Question 2

What is the absolute magnitude of our Sun?
 
  A) -23.0
  B) -4.6
  C) -1.4
  D) +4.8
  E) +9.4


Swizqar

  • Sr. Member
  • ****
  • Posts: 357
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Pupil Assessment, Move Penlight directly in Front of Pupil Pupil Assessment, Move Penlight directly in Front of Pupil
Accretion of the Inner Planets Accretion of the Inner Planets
The Sun and the Planets The Sun and the Planets
A healthy diet is made up of well-balanced nutrients. A healthy diet is made up of well-balanced nutrients.
Use friction to mobilize the entire scalp. Place the fingers on the scalp, and move the skin over ... Use friction to mobilize the entire scalp. Place the fingers on the scalp, and move the skin over ...
How many grams of CO2 can be made from reacting 78.1 g of O2 and 62.4 g of C4H10?2 C4H10 + 13 ... How many grams of CO2 can be made from reacting 78.1 g of O2 and 62.4 g of C4H10?2 C4H10 + 13 ...
Video: Stroke volume - contractility definition

For a complete list of videos, visit our video library