1. Consider a string, 0.2-m long. The fundamental frequency of this string is 40 Hz.
a. Draw the first 3 harmonics.
b. Calculate the wavelengths, frequencies and speeds of the harmonics.
2. What is the wavelength of an 89.7 MHz radio wave? (This problem has been edited to change frequency to wavelength.)
3. Draw the resulting wave: y = 2 sin x + 3 cos x. Also, give the exact value of y when x = 90 degrees.
4. Consider a triangle with sides: 33, 56, 65. Find the values of the angles.
5. What is the period of a 1.3-m long pendulum on Earth? On the Moon?
All formulas will be given in this quiz - no need to memorize: SOH CAH TOA, v = f l, l = 2L/n, c = 3E8 m/s
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