What is the cost of operating the object in the previous question for 29
hours at a rate of 79 cents/kWhr?*

You can calculate the cost of energy use for various electrical appliances and ... in kilowatts, is multiplied by the operating hours to determine the energy use in kilowatt ... hours of energy use times the electric rate of eight cents per kilowatt-hour. ... the side which states how much energy costs to run the appliance for a year.

Explanation:

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