Cut a cube block of 1 cubic meter into small cube blocks of 1 cubic decimeter with a knife. If these small blocks are arranged in a row, they are () long in total?

Cut a cube block of 1 cubic meter into small cube blocks of 1 cubic decimeter with a knife. If these small blocks are arranged in a row, they are () long in total?


Cut a cube block of 1 cubic meter into small cube blocks of 1 cubic decimeter with a knife. If these small blocks are arranged in a row, they are (100 meters) long in total



The cube block with a volume of 1 cubic meter is cut into small cube blocks with a volume of 1 cubic decimeter, and they are arranged in a row, the length of this row is () M


Because: 1 cubic decimeter = 1000 cubic centimeter
So: it can be cut into 1000 small cubes with edge length of 1 cm. 1000 cm = 10 m
The cube block with a volume of 1 cubic meter is cut into small cube blocks with a volume of 1 cubic decimeter, and they are arranged in a row, the length of this row is (10) M



The volume of the hollow copper ball is 30cm3, the mass m = 178g. After the hollow part is filled with some liquid, the total mass m = 314g? (ρ Cu = 8.9 × 103 kg / m3)


From ρ Cu = m Cu V Cu, V Cu = m Cu, ρ Cu = 178g8.9g/cm3 = 20cm3, volume of hollow part, V liquid = 30cm3-20cm3 = 10cm3, ρ liquid = m liquid, V liquid = 314g − 178g10cm3 = 13.6g/cm3. A: the density of injected liquid is 13.6g/cm3