A spherical surface (radius R = 1 m) is uniformly charged (electric charge Q = 1

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A spherical surface (radius R = 1 m) is uniformly charged (electric charge Q = 1 C). What the surface-tension T does this electric charge produce? An isolated system of three contacted solid bodies ( masses: m1,m2,m3, specific heat capacities: c1, c2, c3) have equilibrium temperature Tf . If initial temperatures of two bodies arc known (T1 T2), what was the initial temperature T3 of third body? Three separately located capacitors (capacities: C1, C2, C3) with the electric charges: Q1, Q2, Q3, initially are not connected by conductors. Then capacitors have been connected by conductors into the open parallel circuit. What is the change of the total potential electric energy between the initial and final configuration. A spherical object (r

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