Suppose that a copper sleeve of inner radius 2.40 cm and outer radius 2.50 cm is to be cast. to eliminate bubbles and give high structural integrity, the centripetal acceleration of each bit of metal should be 118g. what rate of rotation is required? state the answer in revolutions per minute.

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and ur welcm

: )

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

0.11 m/s and 0.28 m/s should be correct