Find the mass of the wire that lies along the curve r and has density 8. C,: r(t) = (7 cos t)i +(7 sin t)j, 0sts 2 C2: r(t) = 7j + tk, 0 sts1; 8= 51? O A. 35 * units 4 5 (7 OB. 3 units 8 5 OC. units * +1 units 3( 8 16 35 * units OD.

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