Awooden rod is loaded axially in compression. the rod has a square cross section of side length, s. determine the normal stress and shear stress acting on plane b-b oriented parallel to the wood grain. show all stresses on a stress element oriented along the plane. s

Write the correct abbreviation for each metric unit

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

In a good thermo flask the main cause of heat loss is