Top network posts

• 18 Pulley system. Why do I need to put a minus sign?
• 12 In football, is the inside of each goal part of the field of play?
• 11 Could a player be in an offside position off the field of play?
• 11 Can a goalkeeper chip the ball to the head of a teammate from a goal kick to circumvent the backpass restriction?
• 10 Minimum number of subsets of $A$ of a given order that contain all possible pairs of elements of $A$
• 6 Probability that an element belongs to an infinite subset of a set
• 6 Why did teams score so much during the first editions of the FIFA World Cup?
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