What is the composition, in atom percent, of an alloy that consists of 30 wt% zn and 70 wt% cu? calculate an average density of alloy.

Select any two (2) areas of applications of chain-drive. (clo4) a)-permanent lubrication necessary b)-hydraulic forklift truck operation c)-rigging and heavy moving materials d)-relatively high maintenance costs e)-costlier than belt drives