It depends. When serving you can't hit the net. When playing if you hit the net and it goes over, it will be hard to get. If it doesn't go over, well, that's your fault.
No you cannot reach over the net to hit a tennis ball...
Yes it can. Roger Federer recently hit a shot that went around the net post for a winner.
To hit the tennis ball over the net.
The tennis net height at the center of the net should be 3' and the post end 3' - 6" above ground.
No, it must not hit the net on service.
pulley and wheel axle
If you hit the ball into the net in tennis you don't lose a point, rather the opponent get s a point.
Yes, a volley is a legal stroke in tennis, as long as contact is made on one's own side of the net, and no contact is made with the net.
you lose the point... O_o
No, no players can cross over the net during play.
When the ball goes into the net. After that it stops. The person that hit the ball into the net looses the point.
No.