Assuming the person wears contacts, what power of contact lens must be used to correct the vision of a farsighted person whose near point is 45.0 m? (no one would actually wear these as contacts)

Could someone me find the answer to this problem.

Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader