Riley is doing an experiment working with friction. he wants to find two ways to modify an object that could increase or decrease the same type of friction. which methods could he use to perform his experiment?
1.increasing roughness and speed
2.increasing surface area and aerodynamic design
3.using nonstick materials and ball bearings
4.using lubricants and increasing surface area
Answers: 1
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Riley is doing an experiment working with friction. he wants to find two ways to modify an object th...
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