(d) In the part (c) situation, the amplitude is (8.0 mm + 5.0 mm) = 13 mm. (e) Using phasor terminology, the angle “between them” in this case is π/2 rad (90º), so the Pythagorean theorem applies: 22(8.0 mm)(5.0 mm)+= 9.4 mm . 36. (a) As shown in Figure 16-16(b) in the textbook, the least-amplitude resultant wave is
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