Ray Bender observes that light striking a sheet of material at a 30 degree angle to the surface, is bent to an angle of 36 degrees relative to the normal as it passes through the material. Through what material is the light passing?
A)
Ruby
B)
Water
C)
Pyrex
D)
Crown glass

What is a carrier wave and how does it affect what you hear on the radio

An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet.whats one advantage of using electromagnetic in devices

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