A sealed air bag, with a volume of 1.50 L when it is at the surface of a pool of water, is lowered into the water. Recall that the pressure, is due to the water column is given by hxp xg where p = 1000 kg m‐³ for water, given that the atmospheric pressure is equivalent to 10.0 m of water. Assuming that the temperature of the water is constant, how far below the water surface is the air bag if the volume of air h inside is now 0.9 L?

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?

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?