18. Waves & Sound
Standing Waves
7PRACTICE PROBLEM
A wire of length 0.8 m and mass 10 g is connected at one end to a spring and at the other end to a clamp. The wire is stretched horizontally to elongate the spring by 6.0 cm. When it is strummed, the wire vibrates in its fundamental mode at a frequency of 120 Hz. Calculate the spring constant. Assume that the spring is at rest.
A wire of length 0.8 m and mass 10 g is connected at one end to a spring and at the other end to a clamp. The wire is stretched horizontally to elongate the spring by 6.0 cm. When it is strummed, the wire vibrates in its fundamental mode at a frequency of 120 Hz. Calculate the spring constant. Assume that the spring is at rest.