What is the potential energy of two equal negative point charges of 2 micro coulombs each, held 1 m apart in air?

What defines the mass number of an isotope? a. the sum of the neutrons and protons b. the sum of the neutrons and electrons c. the number of neutrons d. the number of protons

What should the power status of a circuit be when measuring resistance with an ohmmeter?

Why are graphs useful when interpreting data