Compare between strengthening in single crystalline and polycrystalline metals 23. state the mechanisms in which the strength of polycrystalline metals can be improved 24. compare between strain hardening and work hardening

Light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 96% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. no light passes through the second sheet. what angle does the transmission axis of the second sheet make with the vertical?

Why don't you see your reflection in water with waves or repples

Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).