Astudent measures the force required to stretch a spring a certain distance and produces a graph of distance vs force, pictured below. if the spring being measured obey's hooke's law, how much force will be needed to stretch the spring 17 cm?

In the 1980's, congress authorized the u.s. department of energy to build the wipp facility in the chicuahuan desert in new mexico. what is the purpose of wipp?

The material that keeps its new shape after it is stretched is called?

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?