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 50 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
Thanks for the timely response, appreciate it

elyse44

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

The Types of Stars and Their Sizes The Types of Stars and Their Sizes
Compared with modern humans, Homo erectus has a larger face, lacks a chin and canine fossa, and has Compared with modern humans, Homo erectus has a larger face, lacks a chin and canine fossa, and has
A 2.10-kg hammer is transported to the Moon. The radius of the Moon is 1.74 × 106 m, its mass ... A 2.10-kg hammer is transported to the Moon. The radius of the Moon is 1.74 × 106 m, its mass ...
Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ... Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ...
Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ... Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ...
Video: Parkinson's Disease

For a complete list of videos, visit our video library