A space traveller whose mass is 115 kg leaves earth. what, Ask an Expert

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Q. A space traveller whose mass is 115kg leaves earth. What are his weight and masson earth and in interplanetary space where there are no nearby planetary objects?

Q. A spherical conductor with a radius of 75.0 cm has an electric field of magnitude 8.4 x 10^5 V/m just outside its surface. What is the electric potential just outside the surface, assuming the potential is zero far away from the conductor?

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