[填空题]
Two objects attract each other gravitational mpl+ koms19sp,c:5 5(munwiji c/li5ly with a force )m batsx d4hp+bt/5f7of 2.5$ \times 10^{-10} \mathrm{~N}$ when they are 0.25 m apart.
Their total mass is 4.0 kg . Find their individual masses. m$_1$ = m$_2$ =
