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λ 600 m 80 m 120 m 100 m 64 m 8 m
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T 20 s 8 s 4 s 0,2 s 0,4 s 0,02 s
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f 0,05 Hz 0,125 Hz 0,25 Hz 5 Hz 2,5 Hz 50 Hz
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v 30 m/s 10 m/s 30 m/s 500 m/s 160 m/s 400 m/s
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Wzory:
[tex]\lambda = v\cdot T \ - \ dlugosc \ fali\\\\v = \frac{\lambda}{T} \ - \ predkosc\\\\T = \frac{\lambda}{v} \ - \ okres\\\\f = \frac{1}{T} \ - \ czestotliwosc[/tex]
Obliczenia:
[tex]\lambda = v\cdot T = 10\frac{m}{s}\cdot8 \ s = 80 \ m\\\\\lambda = v\cdot T = 160\frac{m}{s}\cdot0,4 \ s = 64 \ m\\\\T = \frac{\lambda}{v}= \frac{120 \ m}{30\frac{m}{s}} = 4 \ s\\\\T = \frac{1}{f} = \frac{1}{5 \ Hz} = 0,2 \ s\\\\T = \frac{\lambda}{v} = \frac{8 \ m}{400\frac{m}{s}} = 0,02 \ s[/tex]
[tex]f = \frac{1}{T} = \frac{1}{20 \ s} = 0,05 \ Hz\\\\f = \frac{1}{8 \ s} =0,125 \ Hz\\\\f = \frac{1}{T} = \frac{1}{4 \ s} = 0,25 \ Hz\\\\f = \frac{1}{T} = \frac{1}{0,4 \ s} = 2,5 \ Hz\\\\f = \frac{1}{T} = \frac{1}{0,02 \ s} = 50 \ Hz\\\\v = \frac{\lambda}{T} = \frac{600 \ m}{20 \ s} = 30\frac{m}{s}\\\\v = \frac{\lambda}{T} = \frac{100 \ m}{0,2\ s} = 500\frac{m}{s}[/tex]
