1,301 prompts matching "Verifying an index law with numbers"
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Practice: The direction of the resultant of several coplanar forces
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Worked Example: Marking the weight, the normal reaction and the friction on a diagram
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Explain Back: The forces acting on a body hanging from two strings
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Worked Example: Using the sine rule on the triangle of forces
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Explain Back: The order in which the forces are drawn round the triangle
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Explain Back: Why the total moment about any point must be nought
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Practice: Finding an unknown force from a closed polygon
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Practice: Limiting friction, and the greatest value it can reach
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Explain Back: The units of a moment, and why they are newton metres
I have just studied the units of a moment, and why they are newton metres in my SS3 Furthe
Explain Back: A particle hanging from two strings set at different angles
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Worked Example: Matching each force to the sine of the angle opposite it
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Explain Back: A probability distribution table for a discrete random variable
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Worked Example: Finding a particular term of a binomial expansion
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Practice: The variance of a binomial distribution as npq
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Explain Back: Finding n and p from a given mean and variance
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Explain Back: Testing whether data are Poisson by comparing mean and variance
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Practice: The components of a vector given its magnitude and direction
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Worked Example: The distance between two points in three dimensions
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Practice: The dot product as the magnitudes times the cosine of the angle
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Explain Back: The resultant of forces given as vectors
I have just studied the resultant of forces given as vectors in my SS3 Further Mathematics