Created by StemPy LabLight of wavelength longer than cannot eject electrons from a certain metal, however bright it is. Using , the work function of the metal, in electronvolts, is ____.
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← With a potentiometer, the balancing length for a cell on open circuit is 300 cm. When a 10 Ω resistor is connected across the cell, the balancing length becomes 250 cm. The internal resistance of the cell, in ohms, is ____.µ₀ is the permeability and ε₀ the permittivity of free space. The quantity 1/(√(µ₀ε₀)) has the dimensions of →
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