100! You’ve just watched The Adaptable Mind. One of the most important future skills is curiosity. The dictionary defines curiosity as

the desire to learn or know about anything; inquisitiveness.

What is a topic that makes you curious? What about it do you find intriguing? Do you think it will eventually be part of your job?

HERE THE VIDEO on YT

"The Adaptable Mind"

by Tiffany Shlain & Let It Ripple Studio
( I just need your answer since I don't want to give my own, decide anything you like its for school though )

c.the charges if the proton and electron and gravity

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.

i already answered it by 34/s