The density of ice is 0.9 × 10 & sup 3; kg What is the physical meaning of it?

Zero nine times ten to the third kilogram per cubic meter

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1. When the mass of ice is 6.3kg, P ice = 0.9g/cm & # 179; ① calculate the volume of ice; ② after the ice absorbs heat, 3 decimeters of ice melts into ice For ice mass of 6.3kg, P ice = 0.9g/cm & # 179; ① Finding the volume of ice ② After the ice absorbs heat, 3 decimeters of ice melts into water to determine the mass of water The volume of a stone tablet is 150m3. Take a small piece as the sample of this stone tablet, and measure its mass is 100g. Use 100 cm3 water in the cylinder, and then immerse the stone tablet completely in the water, and the water surface rises to 150 cm3. Calculate: (1) the mass of the whole piece of water is 1kg, and calculate the density of the metal?
2. A square wood block with density of 0.6x10 to the third power of kg / M and side length of 10cm is still on the water surface The buoyancy (3) on the upper surface of the block at least how much force to make the block immersed in water
3. Put a cube aluminum block with a volume of 1 cubic decimeter on a horizontal table with an area of 1 square meter, and calculate the pressure on the table If half of the aluminum block is removed along the vertical direction (perpendicular to the horizontal plane), how does the pressure of the remaining half of the aluminum block on the desktop change?
4. Place the square iron block weighing 77.42 n in the center of the horizontal table top with an area of 1 square meter. The pressure of the iron block on the table top is
5. A 78n cube iron block is placed in the center of the 0.5m square meter horizontal table top, and the pressure of the iron block on the table top is calculated +98
6. 14. A cube with a side length of 1dm and a weight of 100N is placed in the center of a horizontal desktop with an area of 0.5m2. The pressure of the cube on the desktop is ()
7. 1. Use 100N horizontal force to press the cube with side length of 10cm and weight of 60N on the vertical wall. What is the pressure and pressure on the wall? 2. What is the gravity of 225ml water?
8. Place the cube iron block with a mass of 7.8kg on the tabletop with an area of 1m2, and calculate the pressure? G of the iron block on the tabletop, taking 10N / kg
9. A cube of 10 cm long and 12 N in weight is placed in the center of a horizontal table with an area of 1 square meter
10. A cube wood block with side length of 10cm and mass of 600g is placed on a table with an area of 1m2 to calculate the pressure and pressure on the table
11. The mass of ice is 9kg, and the density is 0.9x10 cubic kg / m3. The volume of ice is calculated. After the ice absorbs heat, 3 cubic DM of ice melts into water, and the mass of water is calculated?
12. The mass of ice is 9kg, the density is 0.9 × 10 ~ (- 179); kg / M ~ (- 179). (1) calculate the volume of ice. (2) calculate the mass of water if 3DM ~ (- 179); of ice melts into water after heat absorption
13. After all the ice pieces with a volume of 1 square meter melt into water, what is the mass of water__ kg
14. Take out a 500cm3 ice cube from the refrigerator and melt it in the outdoor sunlight. After all the ice cubes are melted into water, the quality of the water is 100%______ And the volume is______ ．
15. What is the mass and volume of water after all the ice cubes of one cubic meter melt into water? As mentioned above, the density of ice is 0.9x10 cubic meter
16. What is the mass and volume of the water after the 1m ^ 3 ice melts into water?
17. The density of wood block is 0.6 × 10 ~ (- 179); kg / M ~ (- 179); the volume is 4dm ~ (- 179); it floats on the water surface (g = 10N / kg) The density of wood block is 0.6 × 10 ~ (- 179); kg / M ~ (- 179); the volume is 4dm ~ (- 179); it floats on the water surface (take g = 10N / kg); (1) Gravity of wood block (2) Buoyancy of wood block (3) Volume of boiled water discharged by wood block
18. A wooden block floats on the water surface. Put an object of M = 4kg on the wooden block, and the wooden block just submerges into the water. If a wooden block with a density of 5000kg / M is hung under the wooden block for three times Square alloy block, wooden block suspended in water, to find the mass of alloy block
19. When a piece of wood floats on the water surface, it is measured that 1 / 5 of the volume of the wood is above the water surface, from which the density of the wood can be calculated______ Kg/m3．
20. How to calculate the volume and density of an object