Voltage (V) AC Voltage 150 100 50 0 -50 -100 -150 10 15 20 25 30 35 40 Time (ms)

The note A4 has a frequency of 440 Hz. What is the wavelength of this sound wave?

A periodic, standing wave exists on a string of length L=1.63m.  If a particular wave is measured to have a wave velocity of v=30.79 m/s, what is the frequency (in Hz) of the n=10 vibrational mode?  Note: In the space below, please enter you numerical answer.  Do not enter any units.  If you enter units, your answer will be marked as incorrect.

Six transverse waves move through different media. They all have the same frequency, but their amplitudes, A, and wavelengths, ?, vary as indicated. Rank these waves according to their propagation speeds, from largest to smallest. That is, rank the wave that is traveling fastest first, and place the wave moving with the slowest speed last. If two (or more) waves have the same speed, give them the same ranking. (Use only ">" or "=" symbols. Do not include any parentheses around the letters or symbols.) A = 6 units; ? = 4 m A = 4 units; ? = 5 m A = 6 units; ? = 6 m A = 2 units; ? = 6 m A = 6 units; ? = 2 m A = 6 units; ? = 2 m