A fin of diameter d W 0.3 cm, length L = 2 cm, and conductivity k = 138 is dissipating heat m. K from a surface at 100 °C. The ambient air is at T. 20 °C and the convection heat transfer coefficient is h = 10 2. Using the adiabatic fin method equations (fin with negligible heat loss at m2.K the tip) along with the corrected fin length, Lc, find the rate of heat dissipated by the fin (in Watts).

Fluids at rest possess no flow energy. a)- true b)- false

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

Burgers vector is generally parallel to the dislocation line. a)-true b)-false