Help! Physics question!
Which of the following represents an example of refraction?
A. The passenger-side mirror on your car says, "Objects may be closer than they appear."
B. You go to a carnival and buy a fiber-optic flashlight that emits different colors of light from the tips of the skinny fibers.
C. You drop your watch in a shallow pool and bend down to pick it up. You reach directly towards it, but your hand misses it.
D. As you move away from your bathroom mirror, your image seems to get smaller.

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

c. magnitude and direction

radiation

explanation:

heat is transmitted by radiation