A particle undergoes three consecutive displacements: d1 = (15 j+ 30 j+ 12 k) cm, d2 = (23 i - 14 i -5.0 k) cm and d3 = (-13i + 15 j) cm. Find the components of the resultant displacement and its magnitude.​

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?

Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a.a piece of paper b.a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block

Positrons are spontaneously emitted from the nuclei of