See below. I need these two asap please. Please be certain of your work.

Question A spring has a natural length of 4 m. It requires 672 J of work to stretch the spring to 10 m. Calculate the work required to stretch the spring from 9 m to 10 m. Round your answer to the nearest hundredth if necessary. Provide your answer below: W =Question A large water trough is 14 m long and has ends shaped like inverted isosceles triangles, with a base of 13 m and height of 5 m. Water density is 1000 kg/m' and acceleration due to gravity is 9.8 m/s . Find the force on one end of the tank if the trough is completely full of water. If necessary, round your answer to the nearest Newton. Provide your answer below: F~ IN