Pieces of lead, copper, iron, and granite, each having a mass of 1 kilogram and a temperature of 100°C, were removed from a container of boiling water and allowed 19 cool under identical
conditions. Which piece most likely cooled to room temperature first?
a. copper
c. iron
b. lead
d. granite

Which of the following represents an upside-down image? o a. +doo b. -doo c. +mo d.-m

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.