1. A clothesline of total mass .9 kg is stretched between posts 10 m apart. It is observed that when one pole is struck by a lawnmower, the transverse pulse reaches the other pole is .25 seconds. What is the tension of the rope?

2. A violin has a 33 cm long string, and is tuned to A (440 Hz). If the fundamental frequency is 440 Hz:

a. What wavelength corresponds to the fundamental frequency?

b. What is the speed of waves along the string?

c. What are the next two possible frequencies?

3. A guitar has a wave speed of 485 m/s in its string, a string length of 65 cm, and a mass of 30 g.

a. What is the tension in the string?

b. What is the frequency of the fourth harmonic on this string?