dealings from North America. Spanish slave trading of Native Americans lasted many years. One ship‚ loaded with 1‚100 Taino men and women‚ crossed the Atlantic to Spain with only 300 Native Americans surviving the journey. The numbers of Native Americans decreased dramatically during the first century after Columbus “discovered” America. Native Americans were captured and transported to Spain as slaves. They were enslaved and forced to work in Spanish mines in the Americas‚ with the average
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Native American Instruments Drums and rattles are the most common instruments used in Native American music. Other percussion instruments include rasps‚ bells (usually attached to clothing)‚ and clap-sticks. Melodic instruments include flutes‚ whistles‚ and stringed instruments. The Apache violin is a single-string instrument made from the stalk of the agave plant‚ and is indigenous to the Apache people. The Yaqui violin‚ on the other hand‚ is closely modeled upon European instruments played at
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ENGINEERING Reaction Engineering CGC035 / CGC052 Problem Sheet 3 - Fluid-fluid reactions 1. The reaction rate for the heterogeneous reaction A(g) + B(l)→ products is second order according to the expression -rA=kCACB and it is relatively slow compared to mass transfer so it takes place in the bulk of the liquid. Combine the following rate expressions for diffusion through the gas and liquid films‚ -rA=kAga(pA-pAi) and -rA=kAlaCAi-CA‚ with Henry’s law pAi=HACAi and the reaction rate
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Chemical Reactions Chemical Change • reorganization • original substances form new substances with different formulas • may or may not involve a change of state • symbols used to describe chemical reaction are known as a chemical equation • Chemical equations do not have equal signs (=) they have an arrow Chemical Equations • Must follow the Law of Conservation of Matter • atoms can neither be created or destroyed during a chemical reaction • What
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In discussing the contact between Europeans and the indigenous populations of the Americas‚ we often consider the historical and political aftermath of their imbalance‚ the complex relationship between the two established over the course of hundreds of years. However‚ what we too often forget to discuss is how this colonialism too easily continues to exist to this day‚ albeit with the ratio of interests involving economical gain versus imperial expansion perhaps reversed a little bit. In this piece
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diseases‚ especially cancer. ANTIOXIDANTS are molecules that can donate an electron to another molecule that has an unpaired electron‚ AKA a free radical.. By donating an electron‚ antioxidants help stop the chemical reaction called oxidation. Think of rust- that’s an oxidation reaction. So basically‚ what antioxidants are important for is to help keep your body from rusting (aging). Are We Receiving the Nutrients We Need? Are all Supplements created equal? Average adult needs to consume 5-10
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Europe to the United States‚ Native American religion was disparate‚ separated by tribes‚ clans or nations. It was unstructured but in general spirituality was inherent in every aspect of their lives; religion was characterized by a oneness with nature and the intense relationship between the indigenous people and their environment. In the 17th century a wave of European settlers crossed the Atlantic to escape persecution in their native countries. They found in the
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times in class as it was often the main goal settlers of North America were trying to accomplish. There were many methods of genocide white settlers committed‚ one in particular was boarding schools. Richard Henry Pratt viewed the Natives as people‚ and had good intentions for them. Although he may have had good intentions they weren’t always perceived that way. “Kill the Indian‚ save the man‚” that was what he did by admitting the native children into boarding schools. Many things that occurred in
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Reactions in Aqueous Solutions: Metathesis Reactions and Net Ionic Equations Introduction: Metathesis or double decomposition reactions are a reaction in which two compounds react to form two new compounds‚ with no changes in oxidation number. The ions of two compounds exchange partners. AX + BY AY + BX This reaction can occur between two inorganic salts when one product is insoluble in water‚ driving the reaction forward. A typical example is as followed and is considered a molecular equation
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Reaction Turbine Nithin Mannil 08d01001 Aim 1. To investigate the Torque/Speed and Power/Speed characteristics of Single Stage Reaction Turbine. 2. To determine the Isentropic Efficiency of a Turbine. 3. To compare the characteristics of a reaction turbine at different values of inlet pressure. 4. To compare the maximum shaft power vs pressure and isentropic efficiency vs pressure. Theory Turbines are machines which develop torque and shaft power as a result of momentum changes in the
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