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when a certain metal is illuminated with light of frequency 3.1 ✕ 1015 hz, a stopping potential of 6.6 v is required to stop the most energetic ejected electrons. what is the work function of this metal?

answer= ev

A-4.60 μc charge is moving at a constant speed of 6.80×105 m/s in the +x−direction relative to a reference frame. at the instant when the point charge is at the origin, what is the magnetic-field vector it produces at the following points.

Acorporation gives out its profits as dividends paid to whom?

Arope has one end tied to a vertical support. you hold the other end so that the rope is horizontal. if you move the end of the rope back and forth with a frequency of 4 hz, the transverse wave you produce has a wavelength of 0.5 m. what is the speed of the wave in the rope?