Answer:
If you put a flashlight on the east side of a plant, the plant will grow in that direction. This is a process called phototropism. Tropism is a plant's reaction to stimulus like gravity, light, water, chemicals, heat, and more. Plants always grow toward light, because they need more of it.
Answer:
a) s
b) 3.41 mm
Explanation:
a)
We take the speed of light, c = m/s and the refractive index of glass as 1.517.
Speed = distance/time
Time = distance/speed
Refractive index, n = speed of light in vacuum / speed of light in medium
b)
We take the refractive index of water as 1.333.
Speed in water = speed in vacuum / refractive index of water
Distance = speed * time
d = 3.41 mm
3^3 is the way you write 3³ when you don't have any way to write the ³ .
Whichever way you write it, it means " 3 · 3 · 3 " . That's 27 .
I don't know what would be considered "simplifying" it. Maybe " 3³ "is a little simpler, but you can't always write that if your computer or your word processor doesn't give you a way to write exponents.
" 3 · 3 · 3 " certainly is not any simpler than " 3^3 ", so that's not it.
" 27 " may be simpler.