If they found Noah's ark, would you believe in a world-wide flood?
"If they don't believe Moses and the prophets, neither will they believe if someone rises from the dead."
Noah's Ark? That could easily be explained as a geographic formation that has the appearance of design, but could not possibly be Noah's Ark. There is nothing in the universe that cannot be explained as occuring by natural processes.
If you found an ark that would be hard data. They would have to figure out the likely dates and compare manufacturing techniques, to see if more information could be derived. The location would be important too; top of a mountain would be different than bottom of a river.
What I am saying is I would look at and evaluate evidence. I might accept the ark theory, if it could be documented, that this pile of wood was the ark, but I do not accept "belief" as a part of the scientific process. As one of our wise men said, "Belief gets in the way of learning."
Secondly, it is a long way between finding an ark, or even the ark, to the overturning of 99.9% of geology, archaeology and several other disciplines.
I have told several people on these threads that I do archaeology, and I routinely deal with the time period posited for the flood. We have lots of evidence of habitation, culture change, population movements, even climate change, but no evidence for a flood on the scale you believe in.
Depends on where they find it and if they can verify it is actually 'the' ark. There are a lot of other questions that would also have to be answered.
Smart money is betting it was a local flood, a much smaller boat and just the owner's livestock.