Question

Va rogEste urgent....ofer coroana

Answer 1

[tex]Se~da:\\ \\ m=0,05kg\\ \\ t=1s\\ \\ k=0,025 \frac N{mm}=25\frac Nm\\ \\ V=0,0064cm^3=6,4\times 10^{-9}m^3\\ \\ v=?\frac ms\\ \\ \rho=?\frac {kg}{m^3}\\ \\ \\ Formule:\\ \\ v=\frac {\Delta l}{t}\\ \\ \\ F_{el}=k\times \Delta l\\ \\ G=k\times \Delta l\\ \\ m\times g=k\times \Delta l\\ \\ \Delta l=\frac{m\times g}k[/tex]


[tex]v=\frac{m\times g}{k\times t}\\ \\ \\ \rho=\frac mV\\ \\ \\ Calcule:\\ \\ v=\frac{0,05\times 10}{25\times 1}=0,02\frac ms\\ \\ \rho=\frac{0,05}{6,4\times 10^{-9}}=7812500\frac{kg}{m^3}\\ \\ \\ Ca~sa~aflii~materialul,~te~uiti~in~tabel~ce~material~are:\\ \\ \rho=7812500\frac{kg}{m^3} [/tex]