1. Two harmonic waves traveling in opposite directions interfere to produce a standing wave described by y = 2 sin(4x) cos(3t) where x is in m and t is in s. What is the speed (in m/s) of the interfering waves?

2. Two harmonic waves traveling in opposite directions interfere to produce a standing wave described by y = 2sin(¶x) cos (3¶t) where x is in m and t is in s. What is the distance (in m) between the first two antinodes?

3. A string is stretched and fixed at both ends, 200 cm apart. If the density of the sting is 0.015 g/cm, and its tension is 600 N, what is the wavelength (in cm) of the first harmonic?

4.A string is stretched and fixed at both ends, 200 cm apart. If the density of the string is 0.015 g/cm, and its tension is 600 N, what is the fundamental frequency?

5. A string is stretched and fixed at both ends 200 cm apart. If the density of the string is 0.015 g/cm, and its tension is 600 N, what is the velocity (in m/s) of the traveling wave?

6. A stretched string is observed to vibrate in three equal segments when driven by a 480 Hz oscillator. What is the natural frequency?

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