Aaircraft strut consists of two cylindrical portions ab and bc and is restrained at both ends. portion ab is made of 7075-t6 aluminum (eal = 10.4 msi, αal = 13.1 x 10-6 /°f) and portion bc is made of 6al-4v titanium (eti = 16.5 msi, αti= 5.3 x 10-6 /°f). if the strut is initially unstressed but is then subjected to a temperature rise of 70°f, determine the normal stresses induced in portions ab and bc by the temperature rise.

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.