8 A teacher advises Janet that the experiment could be made even better with a control group. What could Janet do to create a control group? A. Drop the ball from different heights. B. Use different balls on each surface. C. Include the floor as one of the surfaces. D. Make one of the surfaces paper instead of cardboard.

8 A teacher advises Janet that the experiment could be made even better with a control group. What could Janet do to create a control group? A. Drop the ball from different heights. B. Use different balls on each surface. C. Include the floor as one of the surfaces. D. Make one of the surfaces paper instead of cardboard.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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