A 3.3 cm -diameter isolated metal sphere carries a net charge of 0.81 uC . Part A What is the potential at the sphere's surface? Express your answer using two significant figures. kV Submit Request Answer Part B If a proton were released from rest at the sphere's surface, what would be its speed far from the sphere? Express your answer using two significant figures. m/s

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Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.