Sam and Loretta saw a cool experiment on TV and wanted to try it on their own. First, they poured sand into a plastic cup until it was half full. Next, they used a thermometer to take the sand’s temperature. They then taped a cup upside down on top of the cup with sand in it. Sam and Loretta took turns shaking the cup. They shook it 100 times, un-taped it, and took the sand’s temperature. The temperature was 10 degrees C. They re-taped it, shook it 500 times, un-taped it and took the sand’s temperature. The temperature was 15 degrees C. They re-taped it, shook it 1000 times and then un-taped it and took the sand’s temperature. The temperature was 20 degrees C. 1. What was the Independent Variable for this experiment?
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Physics, 22.06.2019 05:50
Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?
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Sam and Loretta saw a cool experiment on TV and wanted to try it on their own. First, they poured sa...
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