Resposta :
1=
P = F/A
P = 90/ 900.10^4
P = 10.10^4
p = 100000 N/m²
e)nda
2 =
P = m . g
P = 60 . 10
P= 600
Po = 600 / 0,06
Po = 10000 N/m²
Po = 1,0.10^4N/m²
c)1,0.10/4N/m²
,
P = F/A
P = 90/ 900.10^4
P = 10.10^4
p = 100000 N/m²
e)nda
2 =
P = m . g
P = 60 . 10
P= 600
Po = 600 / 0,06
Po = 10000 N/m²
Po = 1,0.10^4N/m²
c)1,0.10/4N/m²
,