ACELLUS PHYSICS HELP! In the diagram, q1 = +6.39*10^-9 C and q2 = +3.22*10^-9 C. What is the electric potential at point P? Include a + or - sign. (Hint: The distance from q1 to P is NOT 0.150 m.) (Remember, V adds as a scalar, NOT a vector.) (Unit = V) ​

i believe the answer would be:

d. violin, clarinet, french horn, and tuba

it was given as a lesson and guide for prayer.

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.