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
Veseljchak [2.6K]
3 years ago
15

What is the relationship between the temperature of a star and its luminosity?

Physics
1 answer:
Sladkaya [172]3 years ago
3 0
The Luminosity of a star is proportional to its Effective Temperature to the 4th power and its Radius squared.
You might be interested in
Explain why a constant speed has a slope of 0 on a graph of speed v. time.
Butoxors [25]
Its constent it doesnt go down or up
6 0
4 years ago
Read 2 more answers
What is it called when a balloon is charged by your hair?
diamong [38]
When you rub a balloon on your head, electrons move from the atoms and molecules in your hair onto the balloon. Electrons have a negative charge, so the balloon becomes negatively charged, and your hair is left with a positive charge.
3 0
3 years ago
Read 2 more answers
Which property of matter is an extensive, rather than an intensive, property of matter?.
leonid [27]

 A property known as an extensive property depends on the quantity of materials in a sample. A couple of instances of extensive attributes are mass and volume. A property of matter that is intensive depends solely on the type of matter in a sample and not on the quantity.

<h3>Which of the following is intensive as opposed to extensive?</h3>

An intense property is a structural characteristic of a system that is independent of the system's size or the volume of its constituent parts. Volume and internal energy are extensive qualities while density, pressure, and temperature are intensive ones.

<h3>What is an illustration of a extensive property?</h3>

The features that depend on the amount of matter present are referred to as extensive properties. Volume, mass, internal energy, etc. are some examples.

<h3>What are some instances of a substance's extensive and intensive properties?</h3>

Temperature, T, refractive index, n, density, and object hardness are a few examples of intensive attributes. In contrast, subsystems' comprehensive attributes, such as mass, volume, and entropy, are additive. However, not all physical characteristics of matter fit within those categories.

learn more about extensive property and intensive properties here

<u>brainly.com/question/17594097</u>

#SPJ4

8 0
1 year ago
Which velocity graph shows the car moving toward the right (away from the origin) at a steady (constant) velocity? 
slega [8]

Explanation:

\text{Velocity is defined as the average displacement per unit time.}

\text{Since the car is moving at a steady velocity, the velocity does not change over time, it shows a horizontal line on the }v-t\text{ graph}

\text{Therefore, only option 2,5,8 matches this requirement.}

\text{Since the car is moving to the right, which is defined as the positive direction in this question, the velocity (}v\text{) is also positive.}

\text{Therefore, only option 5 is correct.}

6 0
3 years ago
Derive an expression for the block's centripetal acceleration ac in terms of m , θ , and physical constants, as appropriate
maxonik [38]

The expression for the block's centripetal acceleration is derived as ω²r or v²/r.

<h3>What is centripetal acceleration?</h3>

The centripetal acceleration of an object is the inward or radial acceleration of an object moving in a circular path.

The expression for the block's centripetal acceleration is derived as follows;

ω = dθ/dt

where;

  • ω is the angular speed
  • θ is the angular displacement
  • t is the time of motion

ac = ω²r

where;

  • r is the radius of the circular path

Also, ω = v/r

ac = (v/r)²r

ac = v²/r

Thus, the expression for the block's centripetal acceleration is derived as ω²r or v²/r.

Learn more about centripetal acceleration here: brainly.com/question/79801

7 0
2 years ago
Other questions:
  • A positive charge is moving from the floor of a room toward the ceiling. A magnetic field runs from east to west. In what direct
    7·1 answer
  • What instrument do we use for measuring temperature
    6·2 answers
  • The earth makes ( ) around the sun in it's ( )
    8·1 answer
  • A car goes from 30 m/s to 15 m/s in 5s. What is the value for its acceleration?
    8·1 answer
  • The given function represents the position of a particle traveling along a horizontal line. s(t) = 2t3 − 3t2 − 12t + 6 for t ≥ 0
    11·1 answer
  • A stockroom worker pushes a box with mass 16.8 kg on a horizontal surface with a constant speed of 3.50 m/s. The coefficient of
    9·1 answer
  • The truck travels for 1.5 hours as it makes the 90 mile trip from the warehouse to the store. What was the average speed in mile
    15·1 answer
  • Twice a year the Sun’s rays strike Earth north or south of the....
    11·1 answer
  • What is the first step in creating a successful long-term goal
    10·1 answer
  • Determine the image distance and image height for a 5.00 cm tall object placed 30.0 cm from a double convex lens with a focal le
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!