- Physics hw help pls?

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How much of a 6.0 M acetic acid solution would be needed to make 500mL of a 1.0 M acetic acid solution? Water flowing through a 2.4-
cm
-diameter pipe can fill a 400 L
bathtub in 5.2 min. What is the speed of the water in the pipe? How much water would I need to add to 500mL of a 2.4 M potassium chloride solution to make a 1.0 M solution? What are the first 3 digits of 2018^2018? Does it take an infinite amount of energy to eject a photon at rest inside an hydrogen atom to reach the speed of light?