In a rolling operation, a 1.5 inches thick plate was reduced to the maximum extent possible in a single pass. If the length of contact between the roll and the strip was 1 inches and the roll radius is 6 inches. What is the coefficient of friction and what is the final thickness of the plate

Amachinist needs to remove a tight fitting pin of material a from a hole in a block made of material b. the machinist heats both the pin and the block to the same high temperature and removes the pin easily. what statement relates the coefficient of thermal expansion of material a to that of material b? a) the situation is not possible, heating block b will shrink the hole in the material as the material expands with increasing temperatureb) material b has the same coefficient of expansion as does material ac) material b has a negative coefficient of expansion and a has a positive coefficient of expansiond) material a has a greater coefficient of expansion than does material be) material b has a greate

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

If a balloon is taken outside on a very cold day, what will occur?