Review
1. What is power? What is the SI unit for power?
2. How much power does a toaster have if it does 1,000 joules of work in 30 seconds?
3. How much work can be done in 30 seconds by a 1000-watt microwave oven?
4. Lamar's mom has a car with a 182-horsepower engine. How many watts of power is
that?

Please help 43 points

ice to water 1 water to vapour 2 latent heat

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