'Ft ft' diaporamas de présentation

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FORCE

FORCE A force is any influence that can change the velocity of a body. Forces can act either through the physical contact of two objects ( contact forces : push or pull) or at a distance ( field forces : magnetic force, gravitational force). FREE BODY DIAGRAMS

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? 2 ? ??????????????

? 2 ? ??????????????. ?????? ??? ??????????? ???? ????????????????? ???????????????????????????? ??? Z ?? ?? Z ??????????????. 2.1 ??. ?????? ? ??????. ?????? ?????? ? (1) ??????? ??? ?????? t ????? ? ???? ?????? ? ????????????? ?????? ? ????? ? (2) ?????????

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Soil Conservation Service Runoff Equation

Soil Conservation Service Runoff Equation. where Q = runoff (in.) P = rainfall (in.) I a = initial abstraction (in.) S = potential maximum retention after runoff begins (in.).

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Exterior Angles

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NRCS DIMENSIONLESS UNIT HYDROGRAPH

NRCS DIMENSIONLESS UNIT HYDROGRAPH. q = Discharge at time 1 q p = Peak Discharge Q a = Accumulated Volume at time 1 Q = Total Volume = A Selected Time T o = Time from Beginning of the rise of the peak. 1.0. t l. q/q peak or Q a /Q. 3/8. 5/8. 0. 1. 0. 5. Time/T peak.

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9-2c Convert Units of Area and Volume

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