Hooke’s Law

Sine and Cosine – Definitions and Properties

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Menu (linked Index) Sine and Cosine – Definitions and Properties Last Update: December 23, 2025 Introduction History Etymology Unit Circle Trigonometry Sine and Cosine Wave From the Unit Circle Sinusoid Waveform General Characteristics Circular Motion Parameters Phase Angle Expression Using Rotational Kinematics General Equations for Instantaneous AC Voltage and Current Voltage and Current Waveform Characteristics […]

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Work and Energy

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Menu (linked Index) Work and Energy Last Update: October 28, 2025 Introduction Work Kinematic Equations Kinetic Energy Gravitational Potential Energy Law of Conservation of Energy Spring Forces (Hooke’s Law) Conservative Forces Mechanical Energy Equations Introduction In this post we’ll review some fundamental principles that govern motion and energy in our universe. The exploration begins with

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