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PhysicsQ&A Libraryin air is 3.00 x 108 m/ s. (a) How far are you from the lightning stroke? (b) Do you need to know the value of the speed of light to answer? Explain. P 14.5 group of hikers hears an echo 3.00 s after shouting. How far away is the mountain that reflected the sound wave? A P 14.33 Two small speakers are driven by a common oscillator at 800 Hz. The speakers face each other and are separated by 1.25 m. Locate the points along a line joining the two speakers where relative minima would be expected. (Use Vair = 343 m/ s.) You only need to consider the points in between the speakers. 1 P 14.36 de Two loudspeakers are placed above and below each other, as shown below and driven by the same source at a frequency of 450 Hz. An observer is in front of the speakers (to the right) at point O, at the same distance from each speaker. What minimum vertical distance upward should the top speaker be moved to create destructive interference at point O? cel D2-D1 OMERIVK CONH ITHOEDT Y eYHA tonin I2om 11 0H о 8.00 m botr 3.00 m 4 P 14.39 nce of 40 0 g and a length of 8.00 m.Start your trial now! First week only $4.99!*arrow_forward*

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Can you help me with p 14.36

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