The position of an electron is given by 7 = 8.49t – 5.75rj + 1.68k, with t in seconds and 7 in meters. At t = 3.12 s, what are (a) the x-component, (b) the y-component, (c) the magnitude, and (d) the angle relative to the positive direction of the x axis, of the electron's velocity V (give the angle in the range (-180°, 180°)? (a) Number Units (b) Number Units (c) Number Units (d) Number Units >

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