« previous next »

Author Question: Grazing incidence optics are critical to focusing A) infrared radiation. B) radio waves. C) ... (Read 37 times)

joesmith1212

  • Hero Member
  • *****
  • Posts: 549
on: Jul 27, 2018
Grazing incidence optics are critical to focusing
 
  A) infrared radiation.
  B) radio waves.
  C) gamma rays.
  D) X-rays.
  E) ultraviolet light.

Question 2

Shapley's measurements of the distances to open clusters vastly revised our understanding of our position in the Galaxy.
 
  Indicate whether the statement is true or false


janeli1

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

TRUE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

joesmith1212

  • Hero Member
  • *****
  • Posts: 549
Reply #2 on: Jul 27, 2018
Thank you!


janeli1

  • Sr. Member
  • ****
  • Posts: 330
Reply #3 on: Jul 27, 2018
Always glad to help...


« previous next »
 

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

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?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Phylogeny of modern seedless and seed plants showing critical innovations Phylogeny of modern seedless and seed plants showing critical innovations
Electrocardiography. (a) Electrodes are placed on the patient’s chest to record the electrical event Electrocardiography. (a) Electrodes are placed on the patient’s chest to record the electrical event
Concepts for a critical thinker Concepts for a critical thinker
Changes in Radiation-Absorbing Gases Changes in Radiation-Absorbing Gases
Units of Radiation Measurement Units of Radiation Measurement
Video: Hydrogen bonds vs. Ionic bond

For a complete list of videos, visit our video library