Homework Help: phsyics

Posted by jack on Monday, November 1, 2010 at 7:26pm.

Each of the space shuttle’s main engines is fed liquid hydrogen by a high-pressure pump. Turbine blades inside the pump rotate at 617 rev/s. A point on one of the blades traces out a circle with a radius of 0.020 m as the blade rotates.
(a) What is the magnitude of the centripetal acceleration that the blade must sustain at this point?
(b) Express this acceleration as a multiple of g = 9.80 m/s^2

Please post the steps you did to solve it too, thanks!

phsyics - bobpursley, Monday, November 1, 2010 at 8:21pm
centripetal acceleration= w^2 r
change rev/sec to rad/sec

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