1kg的物体放入盛满水的容器后,溢出0.5kg水,则物体所受浮力为 ______N.
F浮=G排=G溢=m溢g=0.5kg×9.8N/kg=4.9N.
故答案为:4.9.
Mr Brown was much disappointed to see the washing machine he had had _____ went wrong again. [ ]
A. it
B. it repaired
C. repaired
D. to be repaired
古代诗词常以“月”烘托意境。如:李白《月下独酌》中的“(),对影成三人”;张九龄《望月抒怀》中的“(),天涯共此时”;李清照《一剪梅》中的“雁字回时,()”。