1,245 prompts matching "work, energy and power"
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Spot My Mistake: Finding two unknown tensions from three forces in equilibrium
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Learn: Finding two unknown forces by Lami's theorem
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Spot My Mistake: Why the probabilities in a distribution must sum to one
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Practice: Using a binomial expansion to approximate a number
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Spot My Mistake: The probability of exactly r successes in n trials
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Practice: The probability of at least one success
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Practice: The probability of exactly r events in a Poisson distribution
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Practice: The variance of a binomial distribution as npq
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Learn: Finding lambda from a stated mean
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Learn: The probability that a normal variable lies between two values
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Practice: Using the normal tables when the z-score is negative
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Spot My Mistake: When the normal distribution may approximate the binomial
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Spot My Mistake: Drawing a vector as a directed line segment
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Learn: The coordinates of a point in three dimensions
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Learn: The magnitude of a three-dimensional vector
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Practice: The magnitude of the sum of two vectors
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Practice: A vector of stated magnitude in a given direction
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Spot My Mistake: The vector from A to B as the difference of two position vectors
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Learn: Subtracting one vector from another
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Practice: The dot product as the magnitudes times the cosine of the angle
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