Abel challenges kato to use the equation for the time for any projectile to reach maximum height in the absence of air resistance, given by ty, max = vi sin θi g , and the kinematic equation yf = yi + vi(sin θi)t − 1 2 gt2, to determine the maximum height, h, of the tennis ball, given the initial launch angle and speed. which of kato's attempts is correct?

where is the circuit diagram ?

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete

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.