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  • in a protostar before fusion ignites, gravity.
  • in a normal star, fusion.
  • in a star at the end of its life when fusion burns out, gravity. This is what drives the final blast of a supernova explosion.
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What process release the most energy from nuclear fusion burning or shrinking due to gravity?

In a star a balance exist between gravity shrinking and expansion due to fusion energy released.


At what point in its evolution will a protostar stop shrinking and stabilize into a star?

A protostar will stop shrinking and stabilize into a star when the inward force of gravity is balanced by the outward pressure generated by nuclear fusion in its core. This marks the beginning of the star's main sequence phase where it will remain stable for several billion years.


Why did little boy drop?

As with any gravity bomb, conventional or nuclear, once released from the bomber's bomb bay the force of gravity accelerates it downward.


What is is a cold dead star called?

A cold dead star is called a white dwarf. It is formed when a star has exhausted its nuclear fuel and collapsed under gravity, shrinking to a small, dense, and dim object.


How stars are formed and changed?

Matter collecting together at high density due to gravity. They change die to the nuclear reaction process of burning off of the hydrogen then helium and other elements.


What is The force that pulls the nuclear explosion back into the star?

The force that pulls the material of a nuclear explosion back into a star is gravity. Gravity is the attractive force between objects with mass, and in the case of a star, it is the force that keeps the star's material gravitationally bound together despite the energy released in a nuclear explosion.


Why is gravity called a force?

Because it is a force. Gravity is one of the four fundamental forces (gravity, electromagnetism, weak nuclear, strong nuclear or color force).Gravity causes mass to accelerate. F = ma. Gravity must therefore be a force.


Two main forces in a star?

The two main forces in a star are gravity and nuclear fusion. Gravity pulls matter inward, compressing it and creating the high pressure and temperature needed for nuclear fusion to occur. Nuclear fusion releases energy as light and heat, which counteracts the force of gravity trying to collapse the star.


What are 5 types of forces?

- Gravity - Electric - Magnetic - Weak nuclear - Strong nuclear


What is the effect of nuclear missiles?

Same as nuclear gravity bombs dropped by bomber aircraft.


What are 3 forces?

Weak nuclear force Strong nuclear force Electromagnetism Gravity


If we compare the force of gravity to strong nuclear force we could conclude that?

the strong nuclear force is much stronger than the force of gravity. Gravity is the weakest of the four fundamental forces, while the strong nuclear force holds atomic nuclei together and is much stronger than gravity on the atomic scale.