The ability of a material to transfer heat or electric current is called
a. conductivity.
b. insulation.
c. porosity.
d. convection.

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates