Which describes what an outside observer at rest would observe about a spaceship that speeds up and approaches the speed of light? time moves faster on the spaceship, and the length of the spaceship decreases. time moves faster on the spaceship, and the length of the spaceship increases. time moves more slowly on the spaceship, and the length of the spaceship decreases. time moves more slowly on the spaceship, and the length of the spaceship increases.

Both independent and dependent clauses

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?

What is the role of the water cycle in maintaining freshwater levels in lake and rivers?