Construct quantum mechanical operators in the position representation for the following observables (1) kinetic energy in the y-dimension (2) kinetic energy in the 3-d space (3) the inverse square separation, x2 (4) electric dipole moment in the 3-d space (5) the z-component of the angular momentum

Protons have a positive charge and, collectively, give an element its atomic number.

What does the start look like

Answerthe force between the charges will be  f/9 (one-ninth of force f)explanationcoulomb's law relates the magnitudes  two point charges q₁ and q₂, the distance, r, between the charges, and the electrostatic force, f, between the two charges:     k represents coulomb's constant, k = 8.99×10⁹ n·m²/c².note that if we have r = 3r, then   

The answer is: 6.3mi got it right