1. (Part 1) A piano emits frequencies that range from a low of about 28 Hz to a high of about 4200 Hz. Find the maximum wavelength in air attained by this instrument when the speed of sound in air is 339 m/s. Answer in units of m. 2. (Part 2)Find the minimum wavelength in air attained by this instrument. Answer in units of m. 3. (Part 1) A standing wave of frequency 7.19 Hz is set up on a string 2.3 m long with nodes at both ends and in the center, as shown. Find the speed at which waves propagate on the string. Answer in units of m/s. 4. (Part 2) Find the fundamental frequency of vibration of the string. Answer in units of Hz. 5. (Part 1) You dip your finger into a pan of water twice each second, producing waves with crests that are separated by 0.17 m. Determine the frequency of these water waves. Answer in units of Hz. 6. (Part 2). Determine the period of these water waves. Answer in units of s. 7. (Part 3) Determine the speed of these water waves. Answer in units of m/s. 8. When a particular wire is vibrating with a frequency of 2.7 Hz, a transverse wave of wave- length 61 cm is produced. Determine the speed of wave pulses along the wire. Answer in units of m/s. 9. 14 waves crash onto a beach every 49.7 s. What is their frequency? Answer in units of Hz.