Light traveling in air is incident on the surface of a block of plastic at an angle of 62.7o to the normal and is bent so that it makes a 48.1o angle with the normal in the plastic. Find the speed of light in the plastic.

Arope has one end tied to a vertical support. you hold the other end so that the rope is horizontal. if you move the end of the rope back and forth with a frequency of 4 hz, the transverse wave you produce has a wavelength of 0.5 m. what is the speed of the wave in the rope?

By examining a wave’s pattern after it interacts with a barrier or gap, measurements can be made to better understand certain wave phenomena. what is a broad question you can answer by doing this experiment?

When an orange rolls off a table, its potential energy is converted into?