(10%) Problem 8: A particle with charge q = 7 JC is located at the origin of the coordinate system shown in the figure. Point A is located at (3, 4) m. y A (3, 4) Randomized Variables q = 7 uc q X Otheexpertta.com 25% Part (a) If (XA, YA) are the coordinates of point A, select the correct expression for the electric potential VA at point A in terms of the symbols given. 25% Part (b) Calculate the value of the electric potential at point A, in volts. Grade Summary VA = Deductions 0% Potential 100% sin( 7 9 HOME Submissions cos() tan( 8 Attempts remaining: 10 cotan() asin( acos() E 4 5 6 (0% per attempt) detailed view atan( acotan() sinhC 2 3 cosh() tanh() cotanh() + END Degrees Radians VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 0 for a 0% deduction. Hints remaining: 0 Feedback: 0% deduction per feedback. 25% Part (c) Select the correct expression for the magnitude of electric field EA at point A in terms of the symbols given. 4 25% Part (d) Calculate the value of EA, in newtons per coulomb.(10%) Problem 3: An evacuated tube uses a potential difference of AV: 0.58 kV to accelerate electrons, which then hit a copper plate and produce X- rays. D A 50% Part (a) Write an expression for the non-relativistic speed of these electrons v in terms of e, AV, and m, assuming the electrons start from rest. 1/: (1 AV 6 ( a b c d e f g h _] k In P + q s t v 1/0 Submit mm _ [given Hints: 0% deduction per hint. Hints remaining: 1 Feedback: 0% deduction per feedback. i A 50% Part (b) Calculate the non-relativistic speed of these electrons v in m/s. Grade Summary Deductions 0% Potential 100% Submissions Attempts remaining: 10 ( per attempt) detailed View All mum4 n now 1:-.. 'T'A r r rv