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 40 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 effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Scale used to measure pupil size in millimeters. Scale used to measure pupil size in millimeters.
A nineteenth-century Japanese portrait of Commodore Matthew Perry, who “opened up” Japan in 1854. A nineteenth-century Japanese portrait of Commodore Matthew Perry, who “opened up” Japan in 1854.
Thread pitch gauge used to measure the pitch of the thread. This bolt has 13 threads to the inch. Thread pitch gauge used to measure the pitch of the thread. This bolt has 13 threads to the inch.
Computer Literacy for IC3, Unit 2: Using Productivity Software, Update to Office 2013 & Windows ... Computer Literacy for IC3, Unit 2: Using Productivity Software, Update to Office 2013 & Windows ...
Prefilled Unit-Dose Systems Prefilled Unit-Dose Systems
A Partially Filled 50-Unit Insulin Syringe A Partially Filled 50-Unit Insulin Syringe
Video: Neural Reflex Arc Animation

For a complete list of videos, visit our video library