Answer:
light doesn't need a medium through which to travel because the speed of light is experimentally constant
Answer:

Explanation:
Let x be the distance to the shore
From trigonometry properties:

Answer: energy transformation
Answer:
with right hand grip rule
3. A- south
B- north
C- north
D- south
E- south
F- north
sorry idk what 1st & 2nd question means