Python ProgrammingHardHigh School (11–12)High School (9–10)UndergraduateGeneralPython for Science and Maths › Trigonometry and Waves by Computer
Created by StemPy LabWhat does this code print for the frequency of the tallest bar of the spectrum, in Hz? import numpy as np; t = np.arange(0, 2, 0.025); y = np.sin(2 * np.pi * 13.5 * t); f = np.fft.rfftfreq(t.size, 0.025); print(f[np.argmax(np.abs(np.fft.rfft(y)))])
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← A strain gauge on a bridge vibrates at 45 Hz. The recorder stores 60 numbers every second. At which frequency does the spectrum of the record peak?A wave y = A sin(kx - ω t) has k = 4.0 rad/m and ω = 60 rad/s. This code finds the first crest at t = 0.07 s. What does it print, in m? import numpy as np; k, w, t = 4.0, 60.0, 0.07; print(round((np.pi / 2 + w * t) / k, 2)) →
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