Mathematics, 13.05.2021 22:30 taleiayarbough2940
Kate needs to lift a 500 N box of books onto a library shelf that is 3 meters high. She decides that the best machine to help her would be a set of fixed and movable pulleys known as a block and tackle. She applies an effort force of 100 N to the rope of the pulley and finds that she has to pull 18 meters of rope to get the box raised to the height of the shelf. What is the efficiency of the pulley system?
Answers: 1
Mathematics, 21.06.2019 14:30, Yungnaudie
Use the x-intercept method to find all real solutions of the equation. x^3-10x^2+27x-18=0
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Mathematics, 21.06.2019 22:00, victordguerrero2535
Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of
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Mathematics, 21.06.2019 22:10, markayla101326
In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2
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Kate needs to lift a 500 N box of books onto a library shelf that is 3 meters high. She decides that...
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