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Inverse Proportion

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When a Lever is Balanced... The torques are equal F ∙ d = F ∙ d 80 g ∙ 25 cm = 100 g ∙ 20 cm 2000 g cm = 2000 g cm English: g-cm (hyphen) Physics: g ∙ cm Counter Clockwise Torque Clockwise Torque =

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The Smaller Weight is Farther Away Direct Proportion F 1 / x 1 = F 2 / x 2 Force ~ stretch equal ratios Inverse Proportion F 1 ∙ d 1 = F 2 ∙ d 2 Force ~ 1/distance equal products

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Ratios are upside down For Inverse Proportion Direct Proportion F 1 / F 2 = x 1 / x 2 Inverse Proportion F 1 / F 2 = d 2 / d 1

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Pressure and Volume are Inversely Related When the volume goes down, the pressure goes up Pressure is inversely proportional to volume P ~ 1 / V P = k / V P 1 V 1 = P 2 V 2 Direct: F 1 /F 2 = x 1 /x 2 Inverse: P 1 /P 2 = V 2 /V 1 Prob Set 14H

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Proportion. Galileo Was unable to measure the acceleration of gravity accurately. a = g = 9.80 m/s² Discovered Change in velocity is proportional to the.

Proportion. Galileo Was unable to measure the acceleration of gravity accurately. a = g = 9.80 m/s² Discovered Change in velocity is proportional to the.

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