10) Suppose you have a transparent material that is more dense than glass. How would the light ray be
affected? Y

According to the law of reflection, When a ray of light passes from rarer medium to denser medium , it bends towards the normal. So, if there is a transparent material that is more dense than glass then the ray of light will bend towards the normal. The direction of light through the medium is predicted by Snell's Law. According to the Snell's law:

n₁ sin θ₁ = n₂ sin θ₂

Where n₁ is the refractive index of the first medium

n₂ is the refractive index of second medium.

θ₁ and θ₂ are the angle of incidence of light in medium 1 and medium 2

iron would move it is magnetic there is a mag field around the current in the wire

total distance/total time

(85 + 82)/(5+3)

167/8

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