Physics 7B Practice Quiz 4 First two letters of last name: DL Section Number ____________ Name (last, first) ____________________________ Student ID _______________________ I certify by my signature that I will abide by the code of academic conduct of the University of California. Signature No books or notes. Calculators OK. Show all your work below. Answers alone do not receive credit! 1. Two identical objects have initial temperatures of 40 o C and 60 o C. They are placed in thermal contact using a material with a certain conductivity κ . Assume they only exchange heat with each other, and use the linear transport model to answer the following. a) (1.5 pts) On the graph below, draw curves indicating the temperature of the two objects as a function
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