What is the minimum work done by the heart to pump 310 g of blood from a person's foot to his heart 1.5 m away? Use g = 10 m/s2.

Given values:

As we know,

→

By putting the values, we get

Learn more about work done here:

link

Explanation:

Mass(m)=310g=0.31kg

Distance(h)=1.5m

Acceleration due to gravity (g)=10m/s^2

Work=m x g x h

Work=0.31 x 10 x 1.5

Work=4.65joules

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

answer///terminator or twilight zone;