Lecture 9 Examples - football or Bill Belichick Min ball...

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Example 1: On Sunday, January 18, 2015 the Indianapolis Colts suffered a 45-7 loss to the New England Patriots during the AFC Championship game. New England head coach Bill Belichick claims that the difference between the indoor conditions, where the balls were inflated, versus the ambient outdoor conditions could be to blame for an observed 2 psi decrease in ball pressure. Which one is more full of hot air, the
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Unformatted text preview: football or Bill Belichick? Min ball pressure, 12.5 psi Game day field temperature, 51 °F Example 2: 1-kg of water that is initially at 90 °C with a quality of 10 percent occupies a spring loaded piston-cylinder device. The device is now heated until the pressure rises to 800 kPa and the temperature is 250 °C. Determine the total work produced during this process and the amount of heat added to the device....
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