Oil at 150 c flows slowly through a long, thin-walled pipe of 30-mm inner diameter. the pipe is suspended in a room for which the air temperature is 20 c and the convection coefficient at the outer tube surface is 11 w/m2 k. estimate the heat loss per unit length of tube.

Part 1: a magnetic levitation or maglev train rides rails without touching them. explain how this works using your data. include the appropriate magnet drawing in your answer. part 2: two objects are near a bar magnet. one is about 1 cm away, while the other is 6 cm away. compare and contrast the magnetic force that affects each object. use your data to answer the question