« previous next »

Author Question: The Arecibo radio telescope is laid out like which optical telescope design? A) prime focus ... (Read 76 times)

tingc95

  • Hero Member
  • *****
  • Posts: 556
on: Jul 27, 2018
The Arecibo radio telescope is laid out like which optical telescope design?
 
  A) prime focus reflector
  B) Newtonian reflector
  C) grazing incidence reflector
  D) Cassegrain reflector
  E) Coude reflector

Question 2

Describe the range of sizes and masses of black holes.
 
  What will be an ideal response?


bd5255

  • Sr. Member
  • ****
  • Posts: 386
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

The smallest, a three solar mass black hole, is only about 9 km across, but some in the cores of galaxies may be millions of solar masses and larger than the solar system.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

turbine design turbine design
The theoretical design of nature reserves, based on the tenets of island biogeography. The theoretical design of nature reserves, based on the tenets of island biogeography.
Radio Radio
Focus on Older Adults Focus on Older Adults
Antiparkinson Drugs Focus on Restoring Dopamine Function and Blocking Cholinergic Activity in the ... Antiparkinson Drugs Focus on Restoring Dopamine Function and Blocking Cholinergic Activity in the ...
Research Design in Clinical Psychology Research Design in Clinical Psychology
Video: Virtual Enzyme Kinetics & Lineweaver Burk Plot

For a complete list of videos, visit our video library