*Rolling friction is just another form of friction. It doesn’t matter how it works, just the number is good enough For a car like the honda civic the drag due to air resistance is F=0.42v2 [the number has units Ns2/m2]. Using Desmos plot this air drag and add a line representing the road friction ᵳᵣ=r mg . When do the two lines intersect? What general statement can you make about the significance of road friction vs air resistance compared to the velocity of a car? HELP PLEASE

the answer is false

explanation:

small = small current large mag large current

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.