Can someone please help me answer these lab question

Force of Spring Potential Energy of Spring 149 Delta :10 1. 12 1. 14 . 16 1 02 1. 04 .08 Questions and Analysis Delta * .12 . 14 , 16 1. Calculate the slope of the graph of Weight (Newtons) vs Length of Stretch (meters) using the slope formula. Yz - y, * 2 - * 1 2. Looking at the graph you made and the value of the slope you calculated, what is the physical significance of the slope for the graph of Weight (Newtons) vs Length of Stretch (meters)? (In other words, what physical factor about the spring do you determine by calculating the slope in this type of graph?) 3. Compare the number you calculated for the spring constant for each hanging mass, should the value of the spring constant stay the same in each trial? Why or why not? 4. Did the elastic potential energy stored in the spring increase or decrease as you increased the hanging mass on the end of the spring? Justify your answer. 5 . When a mass of 4.2 kg is attached to a spring vertically, the spring is stretched 12 cm from its equilibrium position. Determine the spring constant of the spring. 6. A pogo stick contains a spring with a force constant of 1.5 x 10" N/m. Suppose the elastic potential energy stored in the spring as the pogo stick is pushed downward is 120 J. How far is the spring compressed