the shortstop
second base man- as long as the outfielders throw was decnt and in his range. if not, well the outfielder.
The pitcher. Also, the 1st baseman will stand on the mound to cut off a throw from the outfield to home plate.
A few feet behind the runner when they lead off. The shortstop could loop around instead of the third baseman if you want it to be a surprise.
That depends on where the 1st baseman fields the ball. If the 1st baseman can field the ball, throw to second, and have enough time to get safely back to the base to catch the return throw, then (s)he will cover. If not, then it is the responsibility of the pitcher.
Second, short, third. Repeat.
if the out would be the third no, it is up to the descrestion of the scorekeeper for example, if there was a runner on third with one out and you bunted the and the third baseman overthrew first, then it would be an rbi, but if the second baseman missed the throw to the first baseman with two outs, then there would be no rbi
He throws it to the 3rd baseman.
75 mph
No, if there is a runner on first and the second baseman fields the ball and throws it to the shortstop, who muffs the play and allows both the runner and batter to advance/reach safely, the play would be ruled a fielder's choice and an error. It would still count as an at-bat and a non-hit for the batter, just as if the second-baseman had muffed the throw to the first-baseman with nobody on base.
When a ball is hit into left field it is the shortstop's job to act as a cutoff man while the second baseman covers second base and when the ball is hit to right field it is the second baseman's job to act as a cutoff unless the play is at home then the outfielder will throw to the first baseman as a middle man while the shortstop covers second base. Now if the ball is hit to center field then it is the shortstop's job to cutoff unless again the play is at home then the first baseman is the cutoff.
a first baseman because he is there already.