Why do some people, especially those in the music industry, think analog recordings are better?

Una carga puntual de 3 x 10-6 c se coloca a 12 cm de una segunda carga puntual de - 1,5 x 10-6 c. calcular la magnitud fuerza eléctrica entre las cargas

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

How do you know how many valence electrons an atom has?