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Physics

Chapter 4 - Alternating Current AC Circuits

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Chapter 5 - Dual Nature of Wave and Particle

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Chapter 6 - Atomic Spectra and X-Rays

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Chapter 7 - Lasers and Principles

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Chapter 8 - Modern Electronics and Semiconductors

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Quiz

Lesson 2 Quiz: Digital Electronics and Logic Gates (NOT, AND, OR)

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1.
Why are hydroelectric storage dams constructed with a base that is significantly thicker than the crest?
To prevent solar radiation from penetrating the foundation
Because hydrostatic water pressure increases linearly with depth (P = rho * g * h), exerting immense overturning forces at the bottom
To allow fish to swim upstream through drainage gates
To reduce the gravitational pull of the bedrock