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

Author Question: During the eighteenth and nineteenth centuries, attempts to precisely measure the astronomical unit ... (Read 44 times)

serike

  • Hero Member
  • *****
  • Posts: 542
on: Jul 27, 2018
During the eighteenth and nineteenth centuries, attempts to precisely measure the astronomical unit relied largely on rare
 
  A) total solar eclipses.
  B) transits of the inferior planets across the Sun.
  C) passages of comets close to the Earth.
  D) maximum elongations of Venus.
  E) oppositions of Mars.

Question 2

Most interstellar clouds remain stable in size because the force of gravity is opposed by ________ within the cloud.
 
  A) degeneracy pressure
  B) radiation pressure
  C) stellar winds
  D) thermal pressure


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mcomstock09

  • Sr. Member
  • ****
  • Posts: 377
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

D


serike

  • Hero Member
  • *****
  • Posts: 542
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


mcomstock09

  • Sr. Member
  • ****
  • Posts: 377
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

The organization of mRNA as a translational unit The organization of mRNA as a translational unit
Scale used to measure pupil size in millimeters. Scale used to measure pupil size in millimeters.
The Reinstatement Procedure, a Measure of Craving The Reinstatement Procedure, a Measure of Craving
A Motor Unit A Motor Unit
Schematic of the Agitation Laboratory Apparatus CHE 415 Unit Operations II Schematic of the Agitation Laboratory Apparatus CHE 415 Unit Operations II
30-Unit Insulin Syringe 30-Unit Insulin Syringe
Video: Vasectomy

For a complete list of videos, visit our video library