A model for the density δ of the earth's atmosphere near its surface isδ=619.09-0.000097pwhere p (the distance from the center of the earth) is measured in meters and δ is measured in kilograms per cubic meter. If we take the surface of the earth to be a sphere with radius 6370 km, then this model is a reasonable one for:6.370*106≤p≤6.375*106 Use this model to estimate the mass of the atmosphere between the ground and an altitude of 5 km.

Answer: 3.751*10^18kg

Step-by-step explanation:

δ = 619.09-0.000097p ... equa1 where p (the distance from the center of the earth) is measured in meters and δ is measured in kilograms per cubic meter.

Calculating the density of air at 5km above earth surface

P = 5000m + 6370000m = 6.375*10^6m

δ = 619.09 - (.000097 * 6.375*10^6)

δ = 0.715kg/m^3 = density

Since Mass = density*volume ... equ2

To calculate volume of air around the spherical earth at height 5km

V = (4/3 pai R^3) - (4/3pai r^3) ... equation 3 where R = 6.375*10^6m, r = 6.37*10^6

Substituting R and r in equation 2 to solve for volume of air

V = 1.085*10^21 - 1.08*10^21

V = 5.25*10^18m^3

Substituting δ and V into equation 2 to solve for mass of air

M = 0.715 * (5.25*10^18)

M = 3.751*10^18kg