Describe cause and effect relationships from the readings that are related to chemical changes. Explain how the relationships might be helpful or harmful to different substances. Make connections among the facts to show these relationships. Cite facts from the texts in your response. Also cite what you may already know. Type your answer in the text box below.

Light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 96% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. no light passes through the second sheet. what angle does the transmission axis of the second sheet make with the vertical?

The substances that are necessary for producing of certain hormones and that store and transport vitamins

A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.