1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mafiozo [28]
3 years ago
5

What two factors determine how bright a star appears to be in the sky?

Physics
1 answer:
Delicious77 [7]3 years ago
7 0

Answer:

1. Luminosity

2.Apparent brightness

Explanation:

There are two factors on which brightness of star appear to be in the sky

The two factors are

1. Luminosity

2.Apparent brightness

1.Luminosity :It is defined as the total energy emitted by the object in a given time.Luminosity vary with the distance of observer from the star.Luminosity is a intrinsic property which depends on the fundamental chemical composition and structure of the  material.Luminosity is depends on the size of star.Lager the star luminosity will be more.

2.Apparent brightness: It is defined as how bright a star appears from an observer on the earth and the amount of starlight reaching the earth.if the distance is large then the brightness decreases.When the distance of star from us small then the   brightness of star increases.Distance is inversely proportional to brightness of the star.

You might be interested in
Which of the following best describes a magnetic field? a region around a magnet in which you can measure magnetic forces. a mea
ale4655 [162]
The first one is correct.
3 0
3 years ago
Read 2 more answers
who brought astronomy out of the dark ages by declaring: "finally we shall place the sun himself at the center of the universe.
solong [7]

Nicolaus Copernicus was the one who brought astronomy out of the dark ages.

In one of his books "On the Revolutions of the Heavenly Bodies", he published the renowned line which declares his theory.

Nicolaus Copernicus, A polish astronomer put forward the theory that the is th Sun one that rests in the middle or center of the Universe and the planet Earth revolves around it on its axis every day.which was considered to be called the Heliocentric system.

To know more about the Heliocentric system refer to the link brainly.com/question/3491738?referrer=searchResults.

To know about Sir Nicolaus Copernicus' work refer to the link brainly.com/question/6699117?referrer=searchResults.

#SPJ4

6 0
2 years ago
An object moving north with an initial velocity of 14m/s accelerates 5m/s squared for 20 seconds. What is the final velocity of
Gemiola [76]

Since it moves 5 m/s faster every second, after 20 seconds it's moving 100 m/s faster than when it started speeding up.

If it was moving at 14 m/s when the acceleration began, it's moving at 114 m/s at the end of the 20 seconds.  Its velocity is <em>114 m/s North.</em>

That's 255 mph !

4 0
3 years ago
15 . A scientist who studies the whole environment as a working unit .
soldier1979 [14.2K]

Answer:

<em>Ecologist</em><em>.</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em>Your</em><em> </em><em>answer </em><em>is</em><em> </em><em>Ecologist</em><em>.</em>

3 0
3 years ago
Read 2 more answers
Which one of the following activities is considered part of health care operations? A. Administering a stress test B. Reviewing
Eddi Din [679]
<span>B. Reviewing the competency of health care workers</span> is considered part of health care operations
7 0
4 years ago
Other questions:
  • You have a dark-colored piece of cloth and a light-colored piece of cloth. what would be the best way to determine which piece o
    14·1 answer
  • HELLO ........... OVER HERE............. HELP NEEDED .............. THANK YOU
    13·1 answer
  • Extremely high temperatures and pressures are necessary for fusion reactions to take place in stars. TRUE or FALSE.
    9·2 answers
  • Energy from the Sun travels to Earth as ______. a. mechanical energy a. mechanical energy b. chemical energy c. radiant energy d
    13·1 answer
  • In nonequilibrium, total counterclockwise moments = total clockwise moments. *True False
    8·1 answer
  • To calculate the gravitational potential energy of a statue on a 10-meters-tall platform, you would have to know the statue's __
    10·1 answer
  • Which of these uses the force of gravity to make it move?
    5·2 answers
  • Difference between artificial magnet and natural magnet?? ​
    10·2 answers
  • Is anyone willing to help me in physics? like school work friends?​
    14·1 answer
  • An aircraft jet engine has a thrust of I80N. What impulse is produced<br> in 30 S?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!