Adapt the kinetic theory (that we used to derive the ideal gas law) to derive a formula for the pressure exerted by a gas of photons. n photons are in a box of volume v with perfectly reflecting walls. each photon has energy ey = hv , where h is planck's constant and v is a fixed frequency. recall that the magnitude of the momentum of a photon is given by p = h/1. express the pressure p in terms of n, v, and ey. how does this compare with the corresponding expression for an ideal gas?

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement

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