1. The problem statement, all variables and given/known data A 76 cm long, 1.0 mm diameter steel guitar string must be tightened to a tension of 2200 N by turning the tuning screws. By how much is the string stretched? 2. Relevant equations F=kx K=YA/L 3. The attempt at a solution I dont know how to approach this problem because I feel like I dont have everything i need! I know that F=2200N. but How do i get K to find delta x?