Which of the following is a definition of glass transition temperature?
a. the temperature at which a glass transforms from a liquid to solid.
b. the temperature at which there is a slight decrease in the slope of the temperature versus specific volume curve.
c. the temperature at which a glass transforms from a solid to liquid.

Suppose while hauling rocks, you accidentally drop one. it breaks apart in flat, planar sections. what type of rock did you just drop? 20 points

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

What is the kinetic energy of a baseball moving at a speed of 40 m/s if the baseball has mass of 0.15 kg?