# Capa2 - 1[1 point 10 tries An electron is projected at an...

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1 . [1 point, 10 tries] An electron is projected at an angle of 29.3° above the horizontal at a speed of 8.11×10 5 m/s in a region where the electric field is E = 396 j N/C. Neglecting the effects of gravity, calculate the time it takes the electron to return to its initial height. Answer: 1.14e-08 s 1 2 . [1 point, 10 tries] Calculate the maximum height it reaches. Answer: 1.13e-03 m 1 3 . [1 point, 10 tries] Calculate its horizontal displacement when it reaches its maximum height. Answer: 4.03e-03 m 1 4 . [1 point, 10 tries] A flat surface having an area of 3.48 m 2 is rotated in a uniform electric field of magnitude E = 5.88×10 5 N/C. Determine the electric flux through this area when the electric field is perpendicular to the surface. Answer: 2.05e+06 N*m^2/C 1 5 . [1 point, 10 tries] Determine the electric flux through this area when the electric field is parallel to the surface. Answer: 0.00e+00 N*m^2/C 1 6 . [1 point, 10 tries] A point charge of +4.97 µC is located at the center of a sphere with a radius of 14.5 cm.

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