Each of the space shuttle's main engines is fed liquid hydrogen by a high-pressure pump. Turbine blades inside the pump rotate at 590 rev/s. A point on one of the blades traces out a circle with a radius of 0.022 m as the blade rotates. What is the magnitude of the centripetal acceleration that the blade must sustain at this point?Express this acceleration as a multiple of g=9.80m/s2.