Astructural engineer is using this table to design a wall to protect a city near the ocean. how high should the engineer build the wall? a. 50 meters b. 100 meters c. 150 meters d. 200 meters

The answer would be 200 meters, I just did it on Ed.

200 meters

Explanation:

The given graph shows average amplitude of waves from 2009 to 2011. It is given that a structural engineer is using this table to design a wall to protect a city near the ocean.

The wave that is caused due to motion of wind across the water surface are ocean waves.

From the graph it is clear that the maximum height of ocean wave is more than 150 m. So, the structural engineer must design a wall that has height more than 150 m. Hence, the correct option is (d) " 200 m ".

no sign of dia of fuel cell

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.