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AP Bio Lab write up #1: osmosis and diffusion

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Diffusion and Osmosis Introduction: Atoms and molecules are constantly in motion. This kinetic energy causes the molecules to bump into each other and move in different directions. This motion is the fuel for diffusion. Diffusion is the random movement of molecules from an area of higher concentration to an area of lower concentration. This will occur until the two areas reach a dynamic equilibrium. When this dynamic equilibrium is reached the concentration of molecules will be approximately equal and there will be no net movement of molecules after this point. The molecules will still be in motion but the concentrations will remain the same.

US War With Mexico (Pre-Civil War)

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War with Mexico: Mexico controlled much territory in North America; Americans desired these lands The United States at War: Mexican government would not recognize he annexation of Texas Polk ordered General Zachary Taylor to cross the Texan border and occupy the Mexican city of Matamoras. Polk wished to acquire New Mexico and California; he ordered John C Fremont to lead an expedition to map US rivers. Bear Flag Rebellion - Fremont?s armed struggle with the Mexican government in California Polk determined to start war with Mexico to seize more land; he assembled troops in Texas and claimed that Mexicans had invaded our territory and shed American blood on American territory Whigs opposed the war, but supported it with supplies South and West were enthusiastic for it

Survailance

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Surveillance Technology ?There was of course no way of knowing whether you were being watched at any given moment. How often, or on what system, the Thought Police plugged in on any individual wire was guesswork. It was even conceivable that they watched everybody all the time. But at any rate they could plug in your wire whenever they wanted to. You had to live -- did live, from habit that became instinct -- in the assumption that every sound you made was overheard, and, except in darkness, every movement scrutinized.

Physics lab

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Dat Truong A-3 Honors Graphical Analysis of Motion Purpose: To determine the relationships between: Displacement versus time graph and velocity. The area under the velocity time graph and displacement. Procedure: Set up the experimental apparatus as shown on the instructors? demonstration table. Release the cart spring. Start clock as car passes first gate and stop clock as car passes second gate 10 cm away. Record data in Raw Data chart. Repeat steps one through three for three trials. Repeat step one through four moving the second gate down the track in 10.0cm increments until the displacement between the gates reaches 50.0cm. Position and Time Raw Data Trial # Initial Position (cm) Final Position (cm) t(sec) 1.0 50cm 60cm .22 2.0 50cm 60cm

Frederick Douglass

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Dat Truong Gillilan AP English IV 2 October 2011 The Irony of Education In ?Narrative of the Life of Frederick Douglass,? Douglass struggles to obtain education. However, a cruel irony and paradox follows his search education because the more he acquires understanding, education, and insight, the more his wretchedness increase because as long as he remained a slave, attaining what he most value proves meaningless if his knowledge cannot be put to use. This creates a big problem for Douglass because education and self-improvement means everything to him. Frederick Douglass believes that all people stand equal.

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