1,199 prompts matching "how many ways can a committee of 4 be chosen from 10 people"
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WAEC Prep: A rigid body, and what the word assumes
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Learn: Inertia, and what mass actually measures
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Quiz: Why mass stays the same wherever the body is taken
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Learn: Converting a weight given in kilogram-force into newtons
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Spot My Mistake: Compounding three forces acting at one point
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WAEC Prep: Two forces acting in opposite directions
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WAEC Prep: Resolving a force into horizontal and vertical components
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Quiz: Recovering the original force from its two components
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WAEC Prep: The forces on a body resting on a rough horizontal plane
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WAEC Prep: The forces on a body suspended by a single string
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WAEC Prep: Drawing a clear force diagram for a body at rest
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Worked Example: Marking the weight, the normal reaction and the friction on a diagram
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Learn: A space diagram and a force diagram drawn side by side
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WAEC Prep: A rigid body held in equilibrium by four forces
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WAEC Prep: The three unknowns a rigid body problem usually carries
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Practice: Why the forces must sum to nought in two perpendicular directions
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Learn: Choosing the point about which to take moments
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Practice: Finding an unknown force from a closed polygon
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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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