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Which two energy sources can help a star maintain its internal thermal pressure?
nuclear fusion and gravitational contraction
When is gravitational contraction an important energy generation mechanism for the Sun?
It was important when the Sun was forming a shrinking interstellar cloud of gas.
Which two processes can generate energy to help a star maintain its internal thermal pressure?
nuclear fusion and gravitational contraction. I'm cheating on my astronomy homework too :)
How does gravitational contraction generate energy?
Obviously no new energy is created - the Law of Conservation of Energy is still valid. What happens is that potential energy is converted into some other kind of energy, especially heat.
What is muscle contraction without muscle shortening is what kind of contraction?
Isometric contraction
How did gravitational contraction affect earth?
Gravitational contraction raised the temperature of Earth early in it's formation.
Does Uranus continues to generate internal heat through gravitational contraction?
False
How gravitational contraction occur in planet Jupiter?
It occurs in the same way as everywhere else. The greater the mass the more powerful the gravitational attraction.
What is a Kelvin-Helmholtz contraction?
Kelvin-Helmholtz contraction is a contraction of a star once it is formed and before it is hot enough to ignite its hydrogen. The contraction converts gravitational potential energy into heat, some of which is radiated, with the remainder used to raise the internal temperature of the star.
Which two energy sources can help a star maintain its internal thermal pressure?
nuclear fusion and gravitational contraction
When is gravitational contraction an important energy generation mechanism for the Sun?
It was important when the Sun was forming a shrinking interstellar cloud of gas.
What is acceleration deu to gravity"g"?
Acceleration due to gravity "g" is produced by a gravitational force. This can be understood through Newton's law of gravitation: Law of Gravitation: F = (G * m1 * m2) / r^2 where, F is the gravitational force, G is the gravitational contraction number (used in the gravitational formula), m1 and m2 are the masses of two objects, r is the distance between two objects. It follows from this formula that the force of gravity is universal in relation to the velocity and distance between the two objects. "g" here stands for gravitational contraction number or gravitational contraction number of gravitational space (gravitational constant). Because its value is very small, the effect of gravity on the gravitational force is not very strong. It is resorted to by humans at almost all lengths and times. Acceleration of an object with the Earth by gravity "g" is a quantity of energy, which is very small in a single month's mass in a single time. It is important to note that "g" deals with the acceleration of the object relative to Earth, and does not focus on the overall acceleration.
According to the nubular theory what formed the sun and planets of the solar system?
The gravitational contraction of a huge, rotating disk of dust and gases
How is heat related to expansion and contraction?
All energy is transferable. When a body contracts, gravitational potential energy is converted into both kinetic energy and thermal energy. Heat is released by contraction. Conversely, heat is used for expansion.
Which planet has gravitational contraction?
Jupiter. _________________________ Well, ALL of them,, actually, but Jupiter (as the most massive planet in our solar system) is a little more noticeable in this regard.
Which two processes can generate energy to help a star maintain its internal thermal pressure?
nuclear fusion and gravitational contraction. I'm cheating on my astronomy homework too :)
What is an expanded star?
A star in a transitional phase where fusion is increasing causing an increase in the radiation pressure opposing gravitational contraction.
