What is your displacement if you walk 100 m north, 20 m east, 30 m south, 50 m west, and then 70 m south?

Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?

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?

Which of the following statements correctly describes a transformer?