Physics
A resistive force that opposes the relative motion of two surfaces in contact.
Wasteful Mechanical Processes
Lubrication
Resolved Forces and Equilibrium
Free Body Force Diagrams
Object Interactions
Work Done Equation
Closed Systems
Increasing Efficiency
Reducing Unwanted Energy Transfer
Dissipation of Energy
Energy Changes in Systems
Factors Affecting Stopping Distance
Circular Motion Velocity
Dangers of Sparking
Forces Between Charges
Electron Transfer
Charging by Friction
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