Me. you! the sounds from a marching band travel (faster/slower) when the air temperature is 30 degrees c than when the air temperature is 20 degrees c? explain your answer. why can you hear a ringing telephone through a closed door?

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone

How does an observation about an object differ from an inference about that object