Ablock of iron undergoes a change of state and the following data are given. state-1: m=5 kg, v = 5 m/s, z=10 m, p=100 kpa, t=30 deg-c; state-2: m=5 kg, v = 15 m/s, z=20 m, p=100 kpa, t=60 deg-c. use the sl system-state testapp to solve this problem. 40 = 20 + 20 hide details (a). determine the change (state-2 - state-1) in the stored energy (in kj). 20 kj enter answer as a decimal number (3.14, 5.0, -2.78, 5, for example) (b). what percent of the change in stored energy can be attributed to the change in temperature? 20 % enter answer as a decimal number (3.14, 5.0, -2.78, 5, for example)