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Kinetic Energy |
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Potential Energy |
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Thermal, e.g., kinetic energy of gas |
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Radiation, e.g., light, infrared radiation, … |
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Energy is conserved. |
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Fahrenheit (F) |
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Celsius (C) |
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C = (5/9)*(F – 32) |
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Kelvin (K) |
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K = C + 273 |
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Heat is energy in the process of being
transferred from one object to another because of the temperature
difference between the objects. |
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Take 1g liquid water |
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Add 1 calorie heat |
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Raises temperature 1C |
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The Specific Heat of pure water is thus =
1Cal/(g C). |
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Other examples: |
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Mud 0.6Cal/(g C) |
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Ice 0.5Cal/(g C) |
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Dry air 0.24Cal/(gC) |
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All things emit radiation. Wien’s law: |
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Sun: lmax = 3000mm K/6000K = 0.5mm |
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Earth: lmax = 3000mm K/300K = 10mm |
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