An element is subjected to plane stress. By rotating 20 degrees in the clockwise direction from its original position, the element can reach its principal stress state. Which rotation of the element from its original position can reach the state of maximum in-plane shear stress?A. 25 degrees in the counterclockwise directionB. 70 degrees in the clockwise directionC. 45 degrees in the clockwise directionD. 45 degrees in the counterclockwise directionE. 70 degrees in the counterclockwise directionF. 25 degrees in the clockwise direction

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.