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

Author Question: Cepheid variables are useful in measuring the distance to ____. a. globular clusters and dwarf ... (Read 77 times)

debasdf

  • Hero Member
  • *****
  • Posts: 570
on: Jul 27, 2018
Cepheid variables are useful in measuring the distance to ____.
 
  a. globular clusters and dwarf galaxies around the Milky way, but nothing farther
  b. globular clusters and the Andromeda Galaxy, but not more distant objects
 c. galaxies that are within 30 megaparsecs, a relatively short distance
 d. galaxies that are moderately far away, up to about 500 megaparsecs
 e. galaxies and galactic clusters within a gigaparsec of the Milky Way

Question 2

Light gathering power and resolving power both depend on what characteristic of a telescope?
 
  a. number of lenses
  b. magnification
 c. focal length
 d. location
 e. diameter


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

softEldritch

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 27, 2018
Answer to Question 1

c

Answer to Question 2

e


debasdf

  • Member
  • Posts: 570
Reply 2 on: Jul 27, 2018
Gracias!

momolu

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Nurse examining and measuring hematuria sample from client with a UTI Nurse examining and measuring hematuria sample from client with a UTI
Measuring Electrical Charge Measuring Electrical Charge
Measuring Oxygen Saturation Measuring Oxygen Saturation
Distance from Initial Change in Membrane Potential vs. Voltage Change Relative to Initial Change Distance from Initial Change in Membrane Potential vs. Voltage Change Relative to Initial Change
The heat range of a spark plug is determined by the distance the heat has to flow from the tip to ... The heat range of a spark plug is determined by the distance the heat has to flow from the tip to ...
Measuring the client’s blood pressure Measuring the client’s blood pressure
Video: Bulk flow - factors that influence bulk flow

For a complete list of videos, visit our video library