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?

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone