This topic contains a solution. Click here to go to the answer

Author Question: An astronomer would find a type Ia supernova in a distant galaxy useful as a(n) ____. a. spiral ... (Read 134 times)

captainjonesify

  • Hero Member
  • *****
  • Posts: 543
An astronomer would find a type Ia supernova in a distant galaxy useful as a(n) ____.
 
  a. spiral tracer
 b. gravitational lens
  c. age calibration
 d. rotation curve
 e. standard candle

Question 2

What is a major selecting factor for astronomers looking to place a telescope atop a mountain?
 
  a. non-turbulent airflow
 b. percentage of tree-coverage
 c. amount of precipitation
 d. the country it is located within
  e. the economics of the location



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

micaelaswann

  • Sr. Member
  • ****
  • Posts: 314
Answer to Question 1

e

Answer to Question 2

a




captainjonesify

  • Member
  • Posts: 543
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review


bdobbins

  • Member
  • Posts: 326
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

For a complete list of videos, visit our video library