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Coulomb's Law

Q. Calculate the energy in joules for the following zinc battery system used in hearing aids assuming the mass of the battery is 0.275 g composed of 10.00% by mass zinc and capable of producing 1.3 volts .2Zn(s) + O2(g)----> 2ZnO(s)

Solved • May 3, 2020

Coulomb's Law

Q. What is the charge associated with each side of the HF molecule? Express your answer in Coulombs to three significant figures.

Solved • Feb 24, 2020

Coulomb's Law

Q. According to Coulomb's law, rank the interactions between charged particles from highest potential energy to lowest potential energy. Rank from highest to lowest potential energy. To rank items as equivalent, overlap them.

Solved • Feb 9, 2020

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