A cylindrical container with a bottom area of 100cm ^ 2 and a height of 10cm has a pressure of 1200pa on the table after it is filled with water When the metal block is immersed in the water and is still, the indication of the spring dynamometer is 4.8n. After the metal block is slowly taken out, the pressure of the container on the table is 1140pa. (g = 10N / kg) 1. Gravity of container 2. Buoyancy of metal block 3. Density of metal block

A cylindrical container with a bottom area of 100cm ^ 2 and a height of 10cm has a pressure of 1200pa on the table after it is filled with water When the metal block is immersed in the water and is still, the indication of the spring dynamometer is 4.8n. After the metal block is slowly taken out, the pressure of the container on the table is 1140pa. (g = 10N / kg) 1. Gravity of container 2. Buoyancy of metal block 3. Density of metal block

First calculate the gravity of the container water is p * s = 1200 * 100 / 10000 = 12n, overflow water gravity is p * S-P * S1 = (1200 * 100-1140 * 100) / 10000 = 0.6N, so the buoyancy of metal is overflow water gravity 0.6N, metal block 4.8 + 0.6 = 5.4n, density is 5.4 / 0.6 * 1 = 9g / cm3