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periodic motion is used to measure <u>the interval of time</u><u>.</u>
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A. Ancestors of whales may once have been able to walk.
It is important in determining whether injuries/death was an accident or purposeful, and if purposeful, who, how and why did someone do it. They determine the weapon through the ligature marks left, the shape, force and impact of the injury, the location of the injury, and by analysing any fragments and trace evidence left on the wound