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What does the author list in the section titled "Take These Steps Now"?

Which action would best students ask a teacher for an assignment extension?

Which a hammer strikes a compound formed by covalent bounds

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the dependent variable in galileo's experiment?