Maximize the electric force
The two positive point charges are a fixed distance apart. The sum of their charges is Q_T. What charge should each encompass in order to (i) maximize the electric force among them and (ii) minimize it?
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A photon consists of an energy E and wavelength\lambda before scattering from a free electron. After scattering via a 140°, the photon's wavelength has raised by 11.0%. Determine the initial wavelength of the photon in pm.
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