If two objects have different temperatures, heat will flow from the warmer object to the cooler one until . A. one reaches a temperature of zero
B. one runs out of energy
C. they reach the same or equal temperature
D. one is absorbed into the other

An engineer decides to use a slightly weaker material rather than a stronger material, since she knows that the stronger material can break suddenly. this is an example of what? a choosing a material that will show warning before it fails b using composite materials that combine strength c using a material for multiple applications d using design techniques that increase efficiency and reduce cost