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3 solutions

Coulomb's Law

Q. A system of 1620 particles, each of which is either an electron or a proton, has a net charge of −3.488×10−17 C. How many electrons are in this system? I got until Np - Ne, but I am stuck after that. Could you please help out?

Solved • Aug 26, 2019

Coulomb's Law

Q. On a dry day, your body can accumulate static charge from walking across a carpet or from brushing your hair. If your body develops a charge of -15 microcoulombs, how many excess electrons has it acquired? What is their collective mass?

Solved • Aug 21, 2019

Coulomb's Law

Q. The first ionization energy of sodium is 496 kJ/mol. Use Coulomb's law to estimate the average distance between the sodium nucleus and the 3s electron.

Solved • Jun 15, 2019