Un cub din lemn de brad are densitatea rho = 0,95 g/cm3și latura l = 5 cm. agățând cubul de un resort, acesta se alungește cu δl= 23,75 cm. considerând accelerația gravitațională g= 10 n/kg, care este valoarea constantei elastice a resortului?

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..

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