A musician plays a concert A note on her violin (fA = 440 Hz) and finds that it is out of tune. The note is too low in frequency by 1 Hz. The length of the string is L = 0.75 m and the total mass of the string is m = 0.05 kg. (a) What is the tension in the string? (b) Should she tighten or loosen the string to tune it? Explain.