A cube with a side length of 35 mm is in equilibrium in water as in the figure. If the sinking part of the cube is h=27 mm; a) Buoyant force acting on the earring Fk = N b) Density of the substanc from which the cube is madepcube Su kg/m3 h c) If a hemisphere with a diameter of 15 mm is removed from the top of the cube, the new weight of the cube W new N

Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.