Describe as fully as you can how a radiator at one end of a cold room can cause the temperature of a person at the other end of the room to warm up. you should refer to all three types of heat transfer your answer and demonstrate as much understanding as possible in your answer. you may use drawings and/or bullet points and/or paragraphs. your answer is not detailed enough if you fit it within half a page

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.

Aspring has a natural length of 8 m. if a 12-n force is required to keep it stretched to a length of 10 m, how much work w is required to stretch it from 8 m to 16 m? (round your answer to two decimal places.)

Multiply or divide to make this english distance conversion. 174 inches = feet (14.5, 58, 2,088, 23)