Physics, 24.01.2020 22:31 yhbgvfcd331
Atiny 0.0250 -microgram oil drop containing 15 excess electrons is suspended between to horizontally closely-spaced metal plates that carry equal but opposite charges on their facing surfaces. the plates are both circular with a radius of 6.50cm. (k = 1/4pi(epsilon)0 = 9.0 x 10^9 n x m^2/c^2, e = 1.6 x 10^-19 c)a) how much excess charge must be on each plate to hold the oil drop steady? (b) which plate must be positive, the upper one or the lower one?
Answers: 2
Physics, 22.06.2019 20:30
Four identical lab carts each have a mass of 200 kg. different masses are added to the carts and the velocities are measured. all carts move to the right.
Answers: 3
Atiny 0.0250 -microgram oil drop containing 15 excess electrons is suspended between to horizontally...
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