Answer:1.27
Explanation:
Given
incident angle
refracted angle
Suppose is the refractive index of material then using Snell's law we can write
where =refractive index of air
Concrete is also used as beam material, and is cheaper. However, concrete is comparatively not that strong to withstand the high tensile forces acting on the beams
Answer:
D-it's never acceptable to ignore rules and etiquette
Explanation:
the purpose of using a chemical equation is to know the reactants and products that occur.
reactants=starting material
products=end result
A tissue donor is what you're probably looking for. :)