Aparticle's velocity is described by the function vx = kt 2 m/s, where k is a constant and t is in s. the particle's position at t0 = 0 s is x0 = -9.0 m. at t1 = 3.0 s, the particle is at x1 = 9.0 m. determine the value of the constant k. be sure to include the proper units.

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?