Add punctuation: where now q1 and q2 are the electrical charges and the dielectricity constant in vacuum
A: where now q1 and q2 are the electrical charges, and the dielectricity constant in vacuum.

Add punctuation: Since March 1917 when the roaring torrents of workmen and soldiers beating upon the Tauride Palace compelled the reluctant Imperial Duma to assume the supreme power in Russia it was the masses of the people workers soldiers and peasants which forced every change in the course of the Revolution
A: Since March, 1917, when the roaring torrents of workmen and soldiers beating upon the Tauride Palace compelled the reluctant Imperial Duma to assume the supreme power in Russia, it was the masses of the people, workers, soldiers and peasants, which forced every change in the course of the Revolution.

Add punctuation: 1 Use the search function on the forums
A:
1. Use the search function on the forums