Yes, Rule 1.10(a) only says that the length cannot be more than 42 inches.
MLB player Adam LaRoche bats left.
MLB player Bryan Holaday bats right.
Yes. According to MLB Rule 1.10 (a): "The bat shall be a smooth, round stick not more than 2¾ inches in diameter at the thickest part and not more than 42 inches in length. The bat shall be one piece of solid wood."
MLB player Arquimedes Caminero bats right.
MLB player Jose Ramirez can bat right or left (i.e. he is a switch hitter).
The length depends on the person. In MLB (major league baseball) players choose their bat size and weight, this can be anywhere between 30 and 36 inches. (all bats in MLB must be wooden)
Broken bats is not a statistic kept by MLB nor by any team in MLB. There is no way to know this answer.
MLB player Ken Giles bats right.
MLB player Christian Yelich bats left.
Pete Rose has the all-time Major League Baseball (MLB) record for most at-bats (AB) with 14,053 at-bats in his 24-year MLB career - 1689 more than Henry "Hank" Aaron, who is #2 on the all-time career at-bats list.The active MLB player with the most career at-bats is Derek Jeter of the New York Yankees with 10,025 career at-bats.
MLB player Jonathan Villar can bat right or left (i.e. he is a switch hitter).
MLB player Dexter Fowler can bat right or left (i.e. he is a switch hitter).