Is 3750no same as 3litters?
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Multiply by 1000.
In common usage, motion refers to a change in position WITHOUT any reference to time. In that case the dimensions of motion are [L]. However, in physics and mathematics, motion is generally understood to be a change in position with respect to some period of time. In that case the dimensions are [L][T-1].
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(-2) - (+6) = -2 -6 = -8 The difference is one number subtracted from another number. If you relate this question to the number line, it is easier to understand. -l-----l-----l-----l-----l-----l-----l-----l-----l-----l-----l-----l-----l -6...-5....-4....-3...-2....-1.....0...+1...+2...+3...+4...+5...+6 The "distance" between -2 and +6 is 8. But, the direction on the number line in which you are moving does change things. When we subtract +6 from -2, the answer is further to the left on the number line. Plus +6 moves the answer to the right. Plus -6 moves the answer to the left. Similarly, minus +6 moves the answer to the left and minus -6 moves the answer to the right.
It doesn't matter how much but if you can produce any. It only takes one sperm and one egg to make a child.