The refractive index of a certain type of glass is 1.2. What is the critical angle between the glass and air ? Show your work.

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies. molten iron has a density of 7.0g/cm cubed. in its solid state, iron has a density of 8.0g/cm cubed.

What are two different ways you could find the value of a? explain these methods.

Select all that applywhat are some basic resources a family is expected to provide for children? educationclothesspending