Yes, the pitcher has to be in contact with the rubber or if not the pitch will be illegal
Any pitch from the pitcher that can not be caught by the catcher with reasonable effort.
The speed varies from pitcher to pitcher but the average is about 85-100 depending on the type of pitch thrown.
probably not because you should see how fast the pitcher pitches and if they pitch a curve then see how well it curves
In fast pitch, a runner can attempt to steal as soon as the ball has left the pitcher's hand.
The King and his Court.
it is always the first pitch
43 feet in fast pitch