Which formulas and their respective names match? i) li3n lithium nitride ii) h2s hydrogen sulfite iii) so2 sulfur dioxide iv) alf3 aluminum trifluoride

Find the momentum for a 2.6-kg brick parachuting straight downward at a constant speed of 8.4 m/s .

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?

An object in mechanical equilibrium is an object