How is energy lost from the photosphere of a protostar replaced?

Answers

Answer 1

Answer:

Energy radiated from the surface of a protostar which is inreturn is replaced by energy released through gravitational contraction.

This keeps a protostar in thermal equilibrium

hope it helps

Related Questions

Suppose you ride your bicycle to the library traveling at 0.5 km/min. It takes you 25 minutes to get to the library. How far did you travel?
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The (nonconservative) force propelling a 1.50 103-kg car up a mountain road does 5.00 106 J of work on the car. The car starts from rest at sea level and has a speed of 25.0 m/s at an altitude of 1.90 102 m above sea level. Obtain the work done on the car by the combined forces of friction and air resistance, both of which are non conservative forces.

Answers

Answer:

car. The car starts from rest at sea level and has a speed of 29.0 m/s at an altitude of 2.20x10^2 m above sea level. Obtain the work done on the car by the combined forces of friction and air resistance, both of which are nonconservative forces.

Explanation:

If a device uses 280 watts of power a day, about how many kilowatt-hours will it use in 30 days?

Answers

Given: 280 watts power a day

Unknown: KwH=?in 30 days
Solution: 280 watt-hours per day/1000x30 days
.28 x 30=n
Answer:8.4 kwh

dont answer 8.4, its wrong

Plato

When water waves approach an obstacle such as the supports holding up a pier, they will bend around the supports. This wave phenomenon is calleda. reflection.
b. refraction.
c. diffraction.
d. polarization.

Answers

It is called diffraction. C. The spreading out of the waves.

Explain the difference between the following three substances: carbon c. , carbon dioxide (CO2), and oxygen (O2)

Answers

Carbon and oxygen are diatomic atoms. Carbon is made up of two elements.

Answer:

Carbon and oxygen are diatomic atoms. Carbon is made up of two elements.

Explanation:

A cart is loaded with a brick and pulled at a constant speed along an inclined plane the the height of a seattop. If the mass of the loaded cart is 3.0 kg and the height of the seat top is 0.45 meters, then what is the potential energy of the loaded cart at the height of the seattop?

Answers

gravitational potential energy = mass (kg) x gravitational field strength (N/kg) x height (m)

Therefore,

3 x 0.45 x 10 = 13.5J <- it's joules because it's energy

If the frequencies of two component waves are 24 Hz and 20 Hz, they should produce _______ beats per second. A. 2
B. 8
C. 4
D. 12

Answers

This can be answered using the beat frequency formula, which is simply the difference between 2 frequencies.

Let: fᵇ = beat frequency
f₁ = first frequency
f₂ = second frequency

fᵇ = |f₁ - f₂|

substituting the values:
fᵇ = |24Hz - 20Hz|
fᵇ = 4Hz

The unit Hz also means beats per second, therefore:
fᵇ = 4 beats per second

Therefore, the answer is C. 4

C. 4 beats per second is correct

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Which of these statements is true? A. Some molecules may contain no atoms. B. Some elements found in nature exist as molecules. C. Some compounds include only one type of element. D. Some atoms are made of two or more different elements.