Given the vectors 3 P= −i− 7j + 5k, Q= −2i + j − 4k, and S = 8i + Sy j − 6k, determine the value of Sy for which the three vectors are coplanar. A force P is applied to the lever of an arbor press. Knowing that P lies in a plane parallel to the yz plane and that 26 Mx= N⋅m, My = −23 N⋅m, and Mz = −4 N⋅m, determine the magnitude of P and the values of φ and θ .

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