A piano tuner stretches a steel piano wire with a tension of 765 N. The steel wire has a length of 0.800m and a mass of 6.00g .What is the frequency f1 of the string's fundamental mode of vibration?Express your answer numerically in hertz using three significant figures.f1=________HzWhat is the number n of the highest harmonic that could be heard by a person who is capable of hearing frequencies up to f = 16 kHz?Express your answer exactly.n=________