Rob and his team have been chosen to build a wind turbine at a local mountain. The turbine needs to generate electrical energy and withstand the harsh winter alpine environment. Rob and his team have done their research on the problem. What would be the next step?

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

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30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve