How much kinetic energy does a 200 Kg wrecking ball have if it is swung at 10 m/s?
A. 2000 J
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Which of the following involves only abiotic factors? a. a large rock being weathered by wind and rain b. an otter using a stone to break open a sea urchin c. a spider building a web in the corner of a building d. a pine tree absorbing light from the sun
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