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
12345 [234]
4 years ago
7

What is hydrostatic equilibrium in a star? a) The balance between radiation from the surface and the rotation rate b) The expans

ion of the core when it is heated c) The increase in the rate of fusion when the star runs out of hydrogen d) The balance between the force of gravity directed in and thermal pressure directed.
Physics
1 answer:
Dahasolnce [82]4 years ago
6 0

Answer: d) The balance between the force of gravity directed in and thermal pressure directed

Explanation:

Hydrostatic Equilibrium helps to put in perspective star as self- regulating systems . It makes it plain that the energy generated in the star's hot core, is carried outward towards the cooler surface.

You might be interested in
A mass of 0.54 kg attached to a vertical spring stretches the spring 36 cm from its original equilibrium position. The accelerat
UNO [17]
<h2>Spring constant is 14.72 N/m</h2>

Explanation:

We have for a spring

            Force =  Spring constant x Elongation

            F = kx

Here force is weight of mass

           F = W = mg = 0.54 x 9.81 = 5.3 N

Elongation, x  = 36 cm = 0.36 m

Substituting

           F = kx

           5.3 = k x 0.36

             k = 14.72 N/m

Spring constant is 14.72 N/m

6 0
3 years ago
What is the basic unit that represents quantum nature of electricity?
OLga [1]
The basic unit that represents the quantum nature of electricity is the charge of the electron, represented with the symbols e, which corresponds to
|e|=1.6 \cdot 10^{-19}C

The quantum nature of electricity was demonstrated for the first time by Millikan, in its oil drop experiment. In this experiment, Millikan put charged oil drops between two metallic plates, applying a potential difference across them, such that the electrical force acting on the drops was in balance with their weight. Knowing the intensity of the electric field and the mass of the drops, he was able to determine the charge of the oil drops, and he found that this charge was always an integer multiple of a certain value, exactly e.
7 0
3 years ago
Un leopardo recorre 12.000 yardas, el tigre recorre 1.096.800 centímetros y un puma recorre 10,968 kilómetros. ¿Cuál de los tres
Maksim231197 [3]

El leopardo hizo el mayor recorrido.

7 0
3 years ago
A methanogen is prokaryotic and unicellular, and it also lives in extreme environments. Which kingdom does it belong in?
marissa [1.9K]

Answer:

Archaebacteria Kingdom

Explanation:

5 0
3 years ago
Where can protozoa be found?
Semenov [28]
<span>Protozoa live in seas, rivers, lakes, ponds, decaying matters and soil</span>
8 0
4 years ago
Read 2 more answers
Other questions:
  • When you leave wine exposed to the air, the ethanol in it reacts with oxygen to form what?
    6·1 answer
  • a point charge q=-0.35 nc is fixed at the origin. where must an electron be placed in order for the electric force acting on it
    10·1 answer
  • Four soccer players are running down the field at the same speed. Player one weighs 145 pounds and is running toward the north g
    14·1 answer
  • A block slides down a frictionless inclined ramp. If the ramp angle is 17.0° and its length is find the speed of the block as it
    7·1 answer
  • Where are the horse latitudes located?
    11·2 answers
  • A hydrogen atom has a diameter of about 10 nano meters.
    15·1 answer
  • A torpedo is launched underwater, targeting a naval vessel about 5,000 m away. How can the vessel detect the torpedo before it r
    7·1 answer
  • PLEASE ANSWER THIS ASAP THIS IS A SCIENCE QUESTION NO LINKS
    9·2 answers
  • 7.
    13·1 answer
  • Calculate the “index of refraction” of a medium where the speed of light through it is 1.24 x 108 m/s. Use the GRASS method, wri
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!