Pathfinder rules questions

hello! I got my pathfinder hardcover the other day and YAY! i like it. My group is switching to this system.

Question for those who are plying this version -
what effect, if any, does magical enhancement of weapons have on CMB and CMD?

Does my +2 whip have a +2 to make trip attacks?

Does my +3 sword resist bieng pried from my hands by someone using the disarm special manuver?

Greetings!

I believe I have an answer to your question. I found this in the hardcover version, Page 199, 1st column, 2nd paragraph:

"When you attempt to perform a combat maneuver, make an attack roll and add your CMB in place of your normal attack bonus. Add any bonuses you currently have on attack rolls due to spells, feats, and other effects. These bonuses must be applicable to the weapon or attack used to perform the manuever." (C) 2000 Wizards of the Coast

So yes, your +2 whip gives you a +2 enhancement bonus to Trip attempts. Knock 'em down and beat them 'til they squeal!

Light and laughter,
SongCoyote