Question

Rezolvati-mi problemele astea: Dau coronita

Densitatea= 2.7 g/cm cub
V=18 cm cub
g=10 N/kg

m=?
G=?
Fd=?
K=?


m=300g
g=10 N/kg
delta l= 2 cm
G=?
Fd=?
K=?

Answer 1

G=m*g
m=300g=>m=0,3kg
G=0,3kg*10N/kg
G=3N

Fd=K*delta l
Fd=G=3N
K=$\frac{Fd}{Dl}$
K=$\frac{3N}{2cm}$
K=1,5N/cm

Raspunsuri;
G=3N
Fd=3N
K=1,5N/cm