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The top documents tagged [secondtime si unit s]
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Chapter 1 Doing Physics
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Chapter 1 Measurement. We measure things (such as weight, time, length, speed, etc.) We use tools (rulers, clocks, speedometers, etc.) to measure things
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Chapter 1 Introduction. Science: what is it? Science is a system of acquiring knowledge (research) based on 1) empiricism (dependence on observable evidence)
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