Consider a very long rectangular fin attached to a flat surface such that the temperature at the end of the fin is essentially that of the surrounding air, i. e. 20°c. its width is 5.0cm; thickness is 1.0mm; thermal conductivity is 200w/mk; and base temperature is 40°c. the heat transfer coefficient is 20w/m^2k. estimate the fin temperature at a distance of 5.0cm from the base and the rate of heat loss from the entire fin.

Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.