1,318 prompts matching "The value of alpha minus beta, all squared"
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Worked Example: Drawing the polygon of forces to scale
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Quiz: The coefficient of friction between two surfaces
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Spot My Mistake: Why friction does not depend on the area of contact
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WAEC Prep: The moment of a force about the foot of a pole
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WAEC Prep: The moment of a weight about a hinge
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Spot My Mistake: The moment of a force whose line of action is not perpendicular
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Worked Example: The moment of a force about a point on its own line of action
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WAEC Prep: The resultant moment of a couple and a force together
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WAEC Prep: The total moment of two forces about the same point
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Learn: The algebraic sum of moments when the senses differ
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Quiz: The point about which the total moment of a set of forces vanishes
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WAEC Prep: The triangle of forces and concurrence taken together
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Spot My Mistake: Using concurrence to find the direction of an unknown third force
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WAEC Prep: Lami's theorem derived from the triangle of forces
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WAEC Prep: The statement of Lami's theorem
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Worked Example: Matching each force to the sine of the angle opposite it
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WAEC Prep: The variance of a discrete random variable
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WAEC Prep: A random variable, and the values it may take
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Learn: The expectation of a discrete random variable
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WAEC Prep: Expanding p plus q, all to the power n, as a probability model
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