Question: (a) In unit-vector notation, what is the sum a + b if a = (4.0m)i + (3.0m)j and b = ( 13.0m)i + (7.0m)k? What

(a) In unit-vector notation, what is the sum a + b if a = (4.0m)i + (3.0m)j and b = (– 13.0m)i + (7.0m)k? What are the

(b) Magnitude and

(c) Direction of a + b

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