The speed of a light wave is dependent upon the properties of the medium. light travels fastest through a vacuum; slowest through solids. in the case of electromagnetic waves, the speed of the wave depends upon the optical density of that material. the optical density of a medium is not the same as its physical density or the mass/volume ratio. the optical density of a material relates to the sluggish tendency of the atoms of a material to maintain the absorbed energy of an electromagnetic wave in the form of vibrating electrons before reemitting it as a new electromagnetic disturbance. the more optically dense that a material is, the slower that a wave will move through the material. a beam of visible light is passed through a plexiglass container filled with water. if a beam of light comes in at a slight angle, describe the change in the path of the beam of light as it passes through the container, moving in from one side and then out the other.

C) The beam of light will refract four times; largest entering container; smaller angles of refraction moving though water, through container wall again, and finally into the air on the outside.

c) up

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the design of a ski jumping suit involves a trade-off between giving the skiers lift to get higher jumps and ensuring the skier does not face a lot of drag before the jump itself. an expansive suit may to lift the skier higher, but at the same time, it will also increase the air resistance. higher air resistance as the skier goes down the slope limits the speed of the jump. a big suit also increases the risk of losing balance or control, especially if there's a strong gust of wind. while technologically enhanced suits a lot, clothing is not the only factor in a ski jumper’s success. gathering speed while skiing down the slope, ensuring good speed on the ramp, and maintaining good body posture and form in the air all contribute to a ski jumper's success.