Does the coronavirus symptoms come on really quick?

5 days is the average but yes, they can come on very quickly in some cases

Sure. Those infected typically exhibit symptoms a few hours there after exposure, others go days, weeks without. And some others are asymptomatic... so who really knows.

I'd suggest going on a medical website for more accurate information.

If your source of information concerning questions on the corona virus is SW, you have bigger problems

It usually takes around five days. Symptoms are a cough and fever generally.

Yes. You carry the virus for a while 2 days to 14 days then if symptoms are ever to appear they do come on rather quickly.