The document contains two physics problems asking about the tension in a string suspending a submerged sphere and the time taken for a box to move 4 meters from rest with a constant horizontal force applied. The solution finds that the tension in the string suspending the submerged sphere is 34.5 N. For the box problem, it calculates that with a net force of 27.5 N and the box mass of 25 kg, the time taken to move 4 meters is approximately 2.7 seconds.