Consider a very long electrical conductor of 10mm diameter, it is placed concentrically inside a cooled cylindrical tube of 50mm in diameter. The conductor is dissipating heat of 6W per meter of length, and its outer surface has an emissivity of 0.6. The inner surface of the tube has an emissivity of 0.9, and is maintained at a temperature of 27oC. Assuming that both surfaces are diffuse and gray, and that the space between these two surfaces is evacuated, determine the surface temmperature of the conductor

Which is not one of the major climate zones? question 3 options: rain forest polar tropical temperate

Avehicle has an oil leak that is causing the entire oil pan to be wet, but inspection reveals no exact source after cleaning off the oil residue. technician a says to install a fluorescent dye in the crankcase and operate the engine, then re-inspect for leaks with a special light (black light). technician b says the oil leak may be coming from a source at the top of the engine, such as a valve cover gasket. who is correct?

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.