Example Exam 4 -1- These questions are similar to ones that might appear on the fourth exam. They will be discussed in the Tuesday recitation prior to the exam. There will be 20 questions on the exam. 1. A piece of aluminum, which has a thermal expansion coefficient of 2.3 ×10−5C°−1, is 3.0000 cm long. It’s temperature is changed by 100 C°. What is it’s new length? (a) 2.9931 cm (b) 3.0000 cm (c) 3.0023 cm (d) 3.0069 cm 2. Consider placing two, not-necessarily-identical, objects into contact. Thermal equilibrium between the two objects is characterized by
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