no it is not a sacrifice- just a regular at bat and fly out
yes
Advancing on a passed ball does not count as a stolen base unless runner was already in the act of stealing the base, in that case it is a stolen base.
No
As soon as the runner touches home plate, the run scores. The following runner has the right to third base. Either the base coach or the following runner on third base should tell the runner who scored that it was not a foul ball and he should go to the dugout. The ball is still live.
When the ball is in play, a base runner can always ATTEMPT to advance to the next base. He is allowed to advance to next base if the ball was badly thrown during an attempted steal of an earlier base. Note that, if the outfielder throws the ball to third base and the third baseman tags the runner before he gets to third base, the runner is out -- just like any other attempt to "steal" a base.
The runner only has to run if there is another runner behind him (bases loaded) or if there is a force at secoind base.
Yes it is considered a sacrifice.
yes he can do it
The rules state that runners must advance by legally touching each base in succession. In this case, the runner must touch 2B before advancing to 3B, and if she does not, she can be called out on appeal.
Well for example: If a runner is on first and second, and the batter hits the ball, the force play is at third base because the lead runner is forced to run to third due to the runners behind him/her.
tag-up
First, the runner is only out if the fielder has not had a chance at the ball yet. If the ball goes through the 2nd baseman's legs and hits the runner, it's still a live ball. The out is credited to the defensive player closest to the ball when the ball hit the baserunner. For example, if the runner was on third base, more than likely the third baseman would get the unassisted putout. By the way... this example should never happen. Baserunners are taught to lead off third base in foul territory. But it does happen every now and then. Even in the majors.