what energy is friction
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what energy is friction
what type of energy is friction
what type of energy is produced by friction
friction is a form of what energy
what kind of energy is friction
energy fraction
energy fiction
energy faction
energy friction
what energy is friction, what type of energy is friction, what type of energy is produced by friction, friction is a form of what energy, what kind of energy is friction, energy fraction, energy fiction, energy faction, energy friction