During batting practice, the ballplayer swings his bat with a velocity of 16 m/s. If the bat is 0.7 m long, what is the centripetal acceleration at the end of
the bat? (Ignore the length of the ballplayer's arm.)
A 561.2
B 489.4
C 611.3
D 365.7
in need of help ASAP

It is reasonable to assume that the bulk modulus of blood is about the same as that of water (2.2 gpa). as one goes deeper and deeper in the ocean, the pressure increases by 10000 pa for every meter below the surface. if a diver goes down 80.0 m in the ocean, by how much does each cubic centimeter of her blood change in volume? give the answer in cubic centimeters (actually one cubic centimeter equals one milliliter).