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For all machines-not just hammers- the user applies force force to the machine to the machine over a certain distance. question 1 options: input output duo none of the above

According to the online content activity for this lesson, what should you do if you do not understand the material you are trying to learn? a. try a new approach to learning the material. c. re-read the material b. give up d. find someone to give you the answers to the test select the best answer from the choices provided a b c d

Why is it essential to operationally define the variables in a study?