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
MariettaO [177]
3 years ago
10

What allows a star to remain in stellar equilibrium?

Physics
1 answer:
nadya68 [22]3 years ago
5 0

Explanation:

A star is in equilibrium when the pressures inside the star balance out the force of gravity. The pressure is thermal pressure resulting from the fusion reactions taking place in the star's core. A star stays in equilibrium until the supply of hydrogen in the core is depleted.

In a stable star, the gas pressure pushing out from the center is equal with the gravity pulling atoms inward to the center – when these forces are equal, the star is at equilibrium. Once a star reaches equilibrium for the first time, it will start burning (fusing) hydrogen into helium.

You might be interested in
The emissivity of an ideal reflector has which of the following values?
Wittaler [7]

Emissivityis a measure of how much thermal radiation a body emits to its environment. On the other hand we have that reflectivity is a measure of how much is reflected, and transmissivity  is a measure of how much passes through the object. If a body is required to be ideally reflective to its maximum efficiency, the body should NOT have the property of transmissivity or emissivity. Therefore it should be 0 its emittivity.

Correct answer would be A : ZERO.

4 0
3 years ago
3m/s for 12 seconds how dar would he walk
Sunny_sXe [5.5K]
I think 36m/12s because 3×12 =36
4 0
3 years ago
A wave of wavelength 0.3 m travels 900 m in 3.0 s. Calculate its frequency.
Crank

Answer: 1000 Hz

Explanation:

You can calculate frequency by dividing velocity by wavelength

Frequency = velocity/wavelength

Find velocity first.

900 m/3 s = 300 m/s

Plug values in to find frequency.

F = (300 m/s)/0.3 m

F = 1000 Hz

8 0
3 years ago
What is the sharpness of the light and the amount of voltage when you put the magnet through the lower number of coils first vs
fomenos

Answer:hjvuihi

Explanation:lk

4 0
3 years ago
A jet - powered car called the spirit of America required 9600meters to stop from its highest speed . If the car decelerated at
Mazyrski [523]
v^{2} =  u^{2}  +  2ar
0 = u^2 + 2*(-2)*9600
u^2 = 38400
u = 195.96 m/s
6 0
3 years ago
Other questions:
  • If 2.0 j of work Is done raising a 180 g Apple how far was it lifted
    9·1 answer
  • 90 percent round to the thousandths place
    14·2 answers
  • What population of stars does our star belong to?
    5·1 answer
  • What is lateral inverson​
    7·2 answers
  • A boat heads north at 30 mph while a steamer heads east at 40 mph at the same time. When is the distance between them 50 mi? Ans
    12·1 answer
  • How does a distance-time graph show you which direction the runner is moving? Use your own words and science vocabulary.
    11·1 answer
  • This direct relationship graph shows that the position of the car as time elapses.
    9·1 answer
  • Generally, children begin to form a self-concept around ______ months of age.​<br> ​
    10·1 answer
  • Một vô lăng sau khi bắt đầu quay được một phút thì thu được vận tốc 700
    10·1 answer
  • A car with mass m travels over a hill with a radius of curvature of r at a speed of 15 m/s. What is the normal force on the car
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!