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Design techniques and materials that reduce the negative environmental impact of a structure are referred to as

What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.

Is of of 3- ? a. 1--3- b. 1--2- c. 1--3- d. of