A 3.0-C positive point charge is located at the origin and a 2.0 C positive point charge is located at x = 0.00 m, y = 1.0 m. Find the coordinates of the point where the net electric field strength due to these charges is zero.
A) x = 0.00 m, y = 0.55 m
B) x = 0.00 m, y = 0.67 m
C) x = 0.00 m, y = 1.5 m
D) x = 0.00 m, y = 0.60 m
Question 2
Upon being struck by 240-nm photons, a metal ejects electrons with a maximum kinetic energy of
What is the work function of this metal? (h = 6.626 10-34 J s, c = 3.00 108 m/s,
1 eV = 1.60 10-19 J)
A) 3.73 eV
B) 3.13 eV
C) 4.33 eV
D) 4.92 eV
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