A 1.60-m-long string is tied at both ends, and it vibrates with a fundamental frequency of 20.0 1. Identity the standing wave image corresponding to each harmonic mode a. K Determine the frequency fa of the second harmonic mode. Determine the frequency f, of the third harmonic mode. Determine the frequency /, of the fourth harmonic mode. Hz Determine the frequency f, of the fifth harmonic mode HA What is the speed no of waves on the raring