Find the vector equation for a line that passes through the point P=(−5, −7, 8) and intersects L at a point that is distance 2 from the point Q=(−1, 6, −4). Note that there are two possible correct answers. Use the square root symbol '√' where needed to give an exact value for your answer.

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?