1,326 prompts matching "WAEC question on measures of dispersion"
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Learn: What an unclosed polygon of forces tells you
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WAEC Prep: Why friction is called a self-adjusting force
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WAEC Prep: A body just about to slide on a horizontal surface
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WAEC Prep: Friction, and the direction in which it acts
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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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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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Explain Back: The units of a moment, and why they are newton metres
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Worked Example: The total moment of three parallel forces about one end
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WAEC Prep: Why three non-parallel forces in equilibrium must be concurrent
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Explain Back: Locating the point of concurrence on a diagram
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Spot My Mistake: Using concurrence to find the direction of an unknown third force
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Quiz: A rod resting against a wall, and the concurrence of its three forces
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WAEC Prep: A particle in equilibrium on a smooth inclined plane
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WAEC Prep: The conditions for a particle under three forces to be in equilibrium
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WAEC Prep: A probability distribution shown as a bar chart
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Learn: The expectation of a discrete random variable
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Worked Example: Finding a particular term of a binomial expansion
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Learn: Finding the coefficient of a stated power in an expansion
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