Physics questions - 20 points
an ideal gas expands in an adiabatic process that increases its volume by a factor of 3.5. the initial pressure is 6.4 × 10^5 pa. what is the final pressure? let γ = 1.57.
answers:
9.0*10^4 pa
1.1*10^5 pa
1.2*10^4 pa
6.4*10^4 pa
8.9*10^5 pa

What is the measure of a change in an objects velocity?

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?

Two waves maximally constructively interfere at a point in space. among the options below, select the possible value of their phase difference at that point in space.a. zerob. πc. π/2d. not determinable by the information provided