The surface of a 50-mm-diameter, thin-walled tube is maintained at 100 c. in one case air is in cross flow over the tube with a temperature of 25 c and a velocity of 30 m/s. in another case air is in fully developed flow through the tube with a temperature of 25 c and a mean velocity of 30 m/s. compare the heat flux from the tube to the air for the two cases.

the force on the thing and the distance the force moves the thing

i will answer your question if you answer mine

radiation

explanation:

heat is transmitted by radiation

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19