A student cuts 5m of string from a spool and calculates its mass to be 10g. So, he stretches and "pinches" a 2m length of this rope. The first overtone or second harmonic of the string vibrates at 25Hz. a) Calculate the tension in the string. b) Calculate the fundamental frequency for this string. c) If you want to increase the fundamental frequency by 25%. Where would I have to grab the rope and where would I "pinch" it?