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

Author Question: If you compare two stars, a. the one with the larger radius will always have the greater ... (Read 52 times)

waynest

  • Hero Member
  • *****
  • Posts: 553
on: Jul 27, 2018
If you compare two stars,
 
  a. the one with the larger radius will always have the greater luminosity.
  b. the one with the higher surface temperature will always have the greater luminosity.
  c. the one with the smaller absolute magnitude will always have the greater luminosity.
  d. the one with the larger surface area has the greater energy flux from its surface.

Question 2

Which has the larger light-gathering power?
 
  a. a telescope of 5 cm diameter and focal length of 50 cm
  b. a telescope of 6 cm diameter and focal length of 100 cm
  c. a telescope of 2 cm diameter and focal length of 100 cm
  d. a telescope of 3 cm diameter and focal length of 75 cm
  e. both b and c since they have the same focal length.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tjayeee

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 27, 2018
Answer to Question 1

c

Answer to Question 2

b


waynest

  • Member
  • Posts: 553
Reply 2 on: Jul 27, 2018
Excellent

hramirez205

  • Member
  • Posts: 345
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Binary Stars Binary Stars
Evolution of Stars Off the Main Sequence Evolution of Stars Off the Main Sequence
Post–Main-Sequence Evolution of Low-Mass Stars Post–Main-Sequence Evolution of Low-Mass Stars
Atomic Radius Atomic Radius
Men who are at risk for heart disease and report work-related stressors are at greater risk of death ... Men who are at risk for heart disease and report work-related stressors are at greater risk of death ...
standard reduction potential (Eo), the greater the tendency of the oxidized form of a redox couple standard reduction potential (Eo), the greater the tendency of the oxidized form of a redox couple
Video: Interspecific Competition Relationship - Competitive & Niche Differentiation

For a complete list of videos, visit our video library