Question 4: A person informs an engineer that he frequently feels cooler in the summer when standing in front of an open refrigerator. The engineer tells him that he is only “imagining things” because there is no fan in the refrigerator to blow the cool air over him. A lively argument ensues. Whose side of the argument do you take? Why?

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What will cause the transfer of thermal energy to stop? The objects reach the same temperature O The warmer object loses all of its thermal energy O A piece of foam insulation is placed between the two objects O The objects are no longer in direct contact

The diagram below illustrates a simplified version of the Jet Propulsion Laboratory's 25-ft space simulator chamber. Within it, tests are run for deep space probes and their components. In this particular experiment, a sensor assembly with its housing is placed inside. The sensor-housing electronics create heat such that q=3181.0 W exits the assembly's top surface into the chamber. The chamber itself is under vacuum, and its walls are at cryogenic temperatures to simulate conditions in space. Surfaces 1 and 2 are flat. Assume they are flush. The top surface of the chamber, Surface 4, can be approximated as a perfectly insulated, flat ceiling. The exposed surface of the floor, Surface 2, is a black, donut- shaped surface. Additional surface information can be seen below, including various parameters and dimensions. Assume all surfaces are opaque and diffuse, and conditions are at steady-state. PARAMETERS & DIMENSIONS Surface 1: A = 7.07 m²; diameter d; = 3 m; &₁ = 0.5; Surface 2: A₂ =…