You are part of a response team called to a building collaps…

You are part of a response team called to a building collapse that is suspected of being related to a terrorist attack. Citizens in the area are reporting victims having severe respiratory distress as they escape the building. There are many victims collapsed at the scene. There is also a report of an almond smell coming from the building amidst the severe dust. Based on these reports, which type of gas do you most suspect?

The solid circular steel shaft of a screwdriver is subjected…

The solid circular steel shaft of a screwdriver is subjected to a pure torque of T = 25 lb·in. The shaft has a diameter of 0.223 in. and a length of L = 4.25 in. The shear modulus of the steel is G = 11,100 ksi. Determine the magnitude of the angle of twist of the shaft in degrees.