Question

Pe a dou a foaie este ce trebuie sa aflu
R
Teeee rrrooogggg

Answer 1

$Se~da:\\ \\k=10\frac{N}{m}\\ \\V=10cm^{3}=0,00001m^{3}\\ \\\rho=500\frac{kg}{m^{3}}\\ \\a)m=?kg;~G=?N\\ \\b)\triangle l=?m\\ \\ \\Formule:\\ \\a)m=V\times \rho \\ \\G=m \times g\\ \\ \\b)F_{el}=k\times\triangle l\\ \\F_{el}=G\\ \\G=k\times\triangle l\\ \\\triangle l=\frac{G}{k}\\ \\ \\Calcule:\\a)m=0,00001\times 500=0,005kg\\ \\G=0,005\times 10=0,05N \\ \\ \\b)\triangle l=\frac{0,05}{10}=0,005m$