60 POINTS What are characteristics that a product developed by technological design must have in order to be considered a success? Check all that apply.

- It must be available for free.
- It must be time and cost effective.
- It must be durable while working.
- It must pose new problems to be solved.
- It must solve the problem for which it was developed.
- It must solve problems for which it was not originally intended.

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?