Q2. Draw again on a piece of paper your drawing from the plate with all its information. Next draw on each equipotential line a number of arrows (at least 4) depicting the Electric Field due to the pennies (that we take to be point charges of equal and opposite charge). For this task you need to identify which penny is positively charged and which negatively charged. Discuss with your group how you can identify which is which with only knowledge the sequence of the potential difference values of the equipotential line.

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

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it

answer: 31, 5556. 952 seconds

3. dark matter

empty space could also be a simple vacuum