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

Author Question: The appearance of the great range of brightness among stars is due to A) the differences in ... (Read 9 times)

cool

  • Hero Member
  • *****
  • Posts: 570
on: Jul 29, 2018
The appearance of the great range of brightness among stars is due to
 
  A)
 
  the differences in the amount of light different stars emit.
  B)
 
  the differences in the distances of stars from us.
  C)
 
  both of the given answers
  D)
 
  none of the given answers

Question 2

An object is placed 21 cm from a concave lens having a focal length of magnitude 25 cm. What is the magnification?
 
  A) -0.54
  B) 0.54
  C) -0.32
  D) -0.22
  E) 0.22


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

stallen

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

B


cool

  • Member
  • Posts: 570
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

DylanD1323

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Wow, this really help

« 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?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Diverticulosis. Figure illustrates external and internal appearance of diverticula. Diverticulosis. Figure illustrates external and internal appearance of diverticula.
Range of Motion of the Elbow Joint, Supination, Pronation Range of Motion of the Elbow Joint, Supination, Pronation
The Spectra of Stars with Different Surface Temperatures. The Spectra of Stars with Different Surface Temperatures.
Stars and the Interstellar Medium Stars and the Interstellar Medium
Joseph Paxton, Crystal Palace, Great Exhibition, London. Joseph Paxton, Crystal Palace, Great Exhibition, London.
Video: Gastrin (gastric emptying) & Secretin (buffering gastric acid)

For a complete list of videos, visit our video library