Help me with this please!

Hello

I have a very difficult question: if the sun (our sun) turned off with its light, and its gravitational power end off too, what can happen with the hearth (our hearth), of course, you can imagine that we wil die, because we need the sun and its energy to live, but I want to know what can happen to our planet and us, if the sun lose everything for three days.

Thank you so much.

If the Sun were to turn "off" the planets would fly off in straight lines, as it is the Sun's gravity that keeps the planets in their orbits about the Sun. The worst part of your scenario is that we would not be heated from the Sun. In just a few days the Earth's atmosphere cool tremendously. Over a period of months the ocean surface would freeze over. Everything living on land would freeze, But because the Earth has an internal heat source, the oceans (beneath an icy crust) would remain liquid for many millions of years. Most ocean life forms would die off but simple life forms would continue to survive. It would be an interesting study to see how evolution would change these life forms over millions of years.

The scenario described is not plausible.

In a pretend scenario of no light or gravity from the sun for 3 days:
3 days is not enough to cause much problem of survival - it would completely wreck the business world though. I would imagine the world would continue to spin without the sun for 3 days although it's orbit may be a little off when the sun decided to come back.

You see, in order for the sun to cease shining or it's gravitational pull stop pulling the sun itself would have to cease to exist. Then, magically, the sun would then have to pop back into existence after 3 days. We know with some certainty this is not going to happen.

It will expand into a red giant. swallowing Mercury, Venus, and possibly Earth, causing it to lose it's atmosphere all together. Then a couple billion years later it will become a white dwarf. (a small, hot, dense star)