[填空题]
When a 290-g piece of irw-uj;jk)tyt(k- 9smp,k2tx r*dx6ad5 s5d ujg5s(p ll6)g rson at 180$^{\circ} C$ is placed in a 95-g aluminum calorimeter cup containing 250 g of glycerin at 10$^{\circ} C$ , the final temperature is observed to be 38$^{\circ}C $ . Estimate the specific heat of glycerin. $J/kg \cdot C^{\circ} $