See right as a square-shaped closed cross-section of a thin-walled beam. shear loads of the same magnitude are applied both in the x and y directions (sx=sy=s0) at the shear center.

a) solve for the shear flows along the walls.
b) provide a sketch of the shear flows along the walls, in the similar manner as in the slide 35 of ln4.

On a cold day, when the air temperature is 0°c, you empty your lungs and take a deep breath, filling your lungs with 4.2 l of air. if you hold your breath until the temperature of the air in your lungs reaches 37°c, what is the volume of the air in your lungs at that point, assuming the pressure does not change?

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct