AT&T; 9:00 PM session.masteringphysics.com C Problem 29.27 An electron moves in

Question

AT&T; 9:00 PM session.masteringphysics.com C Problem 29.27 An electron moves in the magnetic feld B 0.430 i T with a speed of 1.10 x107 m/s in the directions shown in the figure. For each, what is magnetic force F on the electron? Part A Express vector F in the form of F.. F, F. where the x, y, and z components are separated by commas. Submit My Answers Give Up Part B Express vector F in the form of F, Fy, F, where the x, y, and z components are separated by commas. Submit My Answers Give Up

Explanation / Answer

part a)

F = q*(v cross B)

F = -1.602 x 10-19C*[1.10x107(-j) X 0.430T(i)]

F = -1.602 x 10-19C*[4.73x106(-k)]

F = -7.57 x 10-13 N (-k)

F = 0,0,-7.57 x 10-13 N

part b)

F = -1.602 x 10-19*[1.10x107*{0.707(-j) + 0.707(k)} X 0.430T(i)]

F = -1.602 x 10-19*[{7.777 x 106(-j) + 7.777 x 106 (k)} X 0.430T(i)]

F = -1.602 x 10-19*[3.344 x 106(-k) + 3.344 x 106 (j)]

F = 0, -5.35x10-13N, -5.35x10-13N

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