1,199 prompts matching "how many ways can a committee of 4 be chosen from 10 people"
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Quiz: The tension in the string joining two connected particles
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Practice: A particle on a smooth table connected to a hanging particle
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WAEC Prep: A car towing a trailer, and the force in the tow bar
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Learn: Resolving the weight along and perpendicular to an inclined plane
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Worked Example: The normal reaction on a body resting on a smooth incline
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Practice: The frictional force on a body on a rough incline
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Spot My Mistake: The least force needed to move a body up a rough incline
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Quiz: The centripetal force, and what supplies it in a given situation
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WAEC Prep: The conical pendulum
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Practice: The maximum speed and the maximum acceleration in simple harmonic motion
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Worked Example: The tension in a stretched elastic string
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Spot My Mistake: A particle hanging in equilibrium on an elastic string
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WAEC Prep: Two elastic strings supporting one particle
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Spot my mistake: Assuming AB and BA give the same matrix
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Spot my mistake: Negating the leading diagonal and swapping the other two entries when inverting a 2 by 2 matrix
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Spot my mistake: Treating the kilogram and the kilogram weight as the same unit
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Spot my mistake: Assuming multiplying a vector by a negative scalar leaves its magnitude negative
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Spot my mistake: Treating any vector with small components as a unit vector
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Spot my mistake: Assuming a quadratic with a negative discriminant has no roots at all
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