Can anyone help me try figure out why my Mac wont work?

My mac computer wont turn on, well, the light flashes it makes this weird tonal noise and will go on but then will turn off straight away.
Ok, so I did accidentally pour some water on it – but I’m wondering if it’s something I can fix or if I have to take it in.

Also I have another Mac where the screen wont turn on as, ok I spilled water on that too (I know.) That one turns on but the screen stays black.
I know it’s working as my MBox lights up (for protools)

Any thoughts?
Thanks!