As light passes from air into water (which has a higher refractive index) A. the speed increases and the frequency increases.
B. the speed decreases and the wavelength increases.
C. the speed decreases and the wavelength decreases.
D. the speed decreases and the frequency decreases.
E. the speed increases and the wavelength decreases.

e

explanation:

there is no change in the electric potential energy as it is in rest on both conditions.

d₁ = displacement of tern from arctic to antarctic = 11000 miles

d₂ = displacement of tern from antarctic to arctic =   - 11000 miles

d = total displacement for the journey

total displacement for the journey is given as

d = d₁ + d₂

d = 11000 + (-11000)

d = 0 miles

t₁ = time of travel from arctic to antarctic = 3 months = 3 x 30 days = 90 days

t₂ = time of travel from antarctic to arctic = 3 months = 3 x 30 days = 90 days

t = total time of travel

total time of travel is given as

t = t₁ + t₂

t = 90 + 90

t = 180 days

average velocity is given as

average velocity = total displacement/ total time

v = d/t

v = 0/180

v = 0 miles/day

a skateboard rolling across the street - apex