One end of a piano wire is wrapped around a cylindrical tuning peg and the other end is fixed in place. the tuning peg is turned so as to stretch the wire. the piano wire is made from steel (y = 2.0x1011 n/m2). it has a radius of 0.55 mm and an unstrained length of 0.75 m. the radius of the tuning peg is 1.0 mm. initially, there is no tension in the wire, but when the tuning peg is turned, tension develops. find the tension in the wire when the tuning peg is turned through two revolutions.

Calculate the minimum energy required to remove one proton from the nucleus 126c. this is called the proton-removal energy. (hint: find the difference between the mass of a 126c nucleus and the mass of a proton plus the mass of the nucleus formed when a proton is removed from 126c.) express your answer with the appropriate units. emin e m i n = nothing nothing request answer part b how does the proton-removal energy for 126c compare to the binding energy per nucleon for 126c, calculated using eb=(zmh+nmn−azm)c2?