"if a product has 200 calories per serving and 100 calories from fat, then the percent of calories from fat would reveal that this product is: " a. 100% calories from fat and potentially an unhealthy choice. b. 50% calories from fat and potentially a healthy choice. c. 50% calories from fat and potentially an unhealthy choice.

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.

answer///isobars;

answer a fan shaped mass of sediment deposited at the base of a mountain front do to an abrupt change in stream gradient;