Odpowiedzi

2009-12-10T18:11:44+01:00
P = 1000 hPa = 100000 Pa = 100000 N/m^2

hekto = 100, [Pa] = [ N/m^2]

S = 2m * 2m = 4 m^2

F = ?

p = F/S

p *S = F

F = p*S

F = 100000 N/m^2 * 4 m^2 = 4 00000 N = 400 kN

kilo = 1000
4 5 4