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In statics what does this mean ? ~ when it is doubled. like on top of each other like a equal sign? An engineering system has two components. Let us define the following events:
A: first component is defective, Ac: first component is good? Do you know any books for beginners building Homemade Airplane under 1000 dollars? A three pole contactor would allow how many paths for current flow? Can someone please help me with this question for calculus? Its due in an hour and i cant do it?