Three metal spoons are on table. they are at room temperature. if the three spoons touch. a. heat will flow among the three spoons b. heat will flow between two spoons c. no heat will flow among the spoons d. heat will flow from the spoons to the air

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