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(10%) Problem 7: Vector A has a given magnitude of AI-6.5 and points due east. Vector B, of unknown magnitude, points directly north. The sum A + B makes an angle of e- S8 degrees north of east. Refer to the figure Myburgh, Michelle-micheflemyburgsusdu A+B Otheexpertta.com 33% Part (a) Enter an expression for the magntude of vector B in terms of the magnitude of AJA, and the angle e using any required trigonometric functions Grade Summary Deductions Potential 100% Sabmissions Attempts remaining: I cos(a) cos()cos(8) cotan(0) sin(a) sin(0) sin(p) per attempt) detailed vlew tan(0) Submit Hint Feedback:0% deduction per feedback Hints: % deduction per hint. Hints remainingI 33% Part (b) What is the value of the magnitude of the difference of vectors A and B, A-B7 33% Part (c) what is the value of the magnitude of the sum of vectors A and BJA + B? ii
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