400 Octillion Joules. (400,000,000,000,000,000,000,000,000,000)
It's not really a fair question, however.
The Death Star, as depicted in the Star Wars Movies, is grossly overpowered for its purpose. It would take a tiny fraction of that energy to simply vaporize the surface and wipe out all life.
Okay, I admit I did not actually calculate the energy required to vaporize a planet. I simply assumed that the energy output of a Sun like star would be sufficient if it were all turned on puny little Alderaan (or Earth).
The Sun outputs 400 Octillion Joules / second.
Because of gravity. Only gravity can pull large clouds together with enough force to overcome gas pressure.
Universal law of gravity
gravity! gravity!
No an nebula is held together by the balance of the inward force of gravity and outward pressure.
The answer is simple: gravity.
In space, there is no gravity to overcome. The chllenge to astronauts is how to deal with the lack of gravity.
To overcome gravity, you must reach "Escape Velocity" to overcome gravity and escape a planet's orbit.
Because of gravity. Only gravity can pull large clouds together with enough force to overcome gas pressure.
no
You don't specifically need a magnet to overcome the force of gravity; ANY force that is stronger than gravity can "overcome" it, at least temporarily. For example, if you lift an object up, you are "overcoming" the force of gravity.
it needs to overcome the gravity of the earth lol
Go to space.
Gravity must be overcome.
Gravity
Applied physics! The jumper uses muscles to generate energy. This energy is used to overcome gravity, and the when gravity returns the jumper to the tramp, the tramp "catches" the jumper. In catching the jumper, the tramp stores the jumper's energy in its springs, and then returns it to the jumper. Simple and easy.
fear of heights and gravity
Its impossible because of gravity.