2022-04

Problem 9-4 In Sec. 2-1 we discussed the mechanisms for obtaining the mechanical equations of motion from the form of th...

Problem 9-3 Prove that the relation \(\phi_{\mathbf{k}}=4\pi\rho_{\mathbf{k}}/k^{2}\) simply means that \(\phi_{\mathbf{...

Problem 9-2 Explain why the charge density corresponding to a single charge \(e\) located at the point \(\mathbf{x}(t)=(...