. 45 Vectors A and B lie in an xy plane. A has magnitude 8.00 and...

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. 45 Vectors A and B lie in an xy plane. A has magnitude 8.00 and angle 130; B has components B = 7.72 and B = By = -9.20. (a) What is 5 B? What is 4 3 in (b) unit-vector nota- tion and (c) magnitude-angle notation with spherical coordinates (see Fig. 3-34)? (d) What is the angle between the directions of A and 4A x 3B? (Hint: Think a bit before you resort to a cal- culation.) What is A + 3.00 in (e) unit-vector notation and (f) magnitude-angle notation with spherical coordinates? Z $ X Figure 3-34 Problem 45. . 45 Vectors A and B lie in an xy plane. A has magnitude 8.00 and angle 130; B has components B = 7.72 and B = By = -9.20. (a) What is 5 B? What is 4 3 in (b) unit-vector nota- tion and (c) magnitude-angle notation with spherical coordinates (see Fig. 3-34)? (d) What is the angle between the directions of A and 4A x 3B? (Hint: Think a bit before you resort to a cal- culation.) What is A + 3.00 in (e) unit-vector notation and (f) magnitude-angle notation with spherical coordinates? Z $ X Figure 3-34 Problem 45.