4. calculate the slope of the line in your graph of the square of the period of the spring vs. mass [slope = (y2 – y1)/(x2 – x1)]. robert hooke figured out the equation that describes the periodic motion of the spring. if you square both sides of the equation, you will find that the slope of the line is related to the spring constant (k). specifically, slope = 42/k. use your data to calculate the k of your spring.

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up

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