Physics problems. Archimedes principle 1. The bottom area of the thin-walled cylindrical container placed on the horizontal table is 100 square centimeters. The hook of the spring dynamometer is hung with an object block of 10N. Now immerse the object block in the water, and the water surface in the container rises from 16cm to 20cm. Calculate the volume of the liquid discharged by the object block, the buoyancy of the object block, and the indication of the spring dynamometer 2. The gravity of a metal block in the air is 39n. When it is completely immersed in water, the indication of the spring dynamometer (the metal block does not contact the bottom) is 34n. Calculate the buoyancy of the metal block by water and the volume of the metal block

Physics problems. Archimedes principle 1. The bottom area of the thin-walled cylindrical container placed on the horizontal table is 100 square centimeters. The hook of the spring dynamometer is hung with an object block of 10N. Now immerse the object block in the water, and the water surface in the container rises from 16cm to 20cm. Calculate the volume of the liquid discharged by the object block, the buoyancy of the object block, and the indication of the spring dynamometer 2. The gravity of a metal block in the air is 39n. When it is completely immersed in water, the indication of the spring dynamometer (the metal block does not contact the bottom) is 34n. Calculate the buoyancy of the metal block by water and the volume of the metal block

1、20-16=4cm
Volume 4 × 100 = 400cm ^ 3
Buoyancy f = PGV = 1 × 10 × 400 / 1000 = 4N
The indication is 10-4 = 6N
2. Buoyancy f = 39-34 = 5N
Volume v = f / PG = 500cm ^ 3