70 Changes to ObamaCareâ¦ â So Far. By our count at the Galen Institute, more than 70 significant changes have been made to the Patient Protection and Affordable Care Act, at least 43 that the Obama administration has made unilaterally, 24 that Congress has passed and the president has signed, and three by the Supreme Court.
When a ray of light or a sound wave refracts or is refracted, the path it follows bends at a particular point, due to a change in the density of the substance it is passing th â¦ rough. For example if you put a pencil in a glass half full of water, the pencil looks like it is broken because the empty glass bends the light differently from the water.
A ray is named based on the direction in which it extends. A ray is named with its endpoint in the first place, followed by the direction in which its moving. In the example shown below, P is the endpoint and Q is the point towards which the ray extends.So, the ray PQ is represented as: Look at another example. ray is named based on the direction in which it extends. A ray is named with its endpoint in the first place, followed by the direction in which its moving. In the example shown below, P is the endpoint and Q is the point towards which the ray extends. So, the ray PQ is represented as: