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Introduction: An object's gravitational potential energy depends on two factors: its height (h) and its - (w). The equation for gravitational potential energy (GPE) is: GPE=WXh Goal: Use the gravitational potential energy equation to determine the weight, mass, and potential energy of various objects. 1. Becord: Position all three objects on the 1-m shelf and ll in the third column of the table. 2. Calculate: For each object, substitute the values you know into the gravitational potential energy equation to solve for weight. Record each object's weight in the fourth column. 3. Predict: Suppose the clips were placed on the S-m shelf. What would their gravitational potential energy be? (Show your work.) 4. Calculate: An object's weight is determined by its mass (m) and the acceleration due to gravity (9) affecting that object: w = mg. On Earth, 9 = 9.8 m/sg. A. What are the masses (in kilograms) of the three objects (ball, clips, paper)? (Note: 1 N = 1 kg X m/sz) Ball: Clips: Paper: B. Suppose a 4,000-kg elephant is hoisted 20 m above Earth's surface. What will the elephant's gravitational potential energy be? (Show your work in the space below.) A B C D Object x (m) y (m) PE (J) 2 ball 0.98 0 0 3 clips 2.52 2 0.78 4 paper 3.98 4 0.31 5 clips 2.52 0 0 6 clips 2.39 2 0.78 7 paper 1.28 0.24 8 paper 4.02 0.08 9 paper 3.53 0.08 10 paper 2.54 0.39 11 clips 3.49 4 1.57