Why a loaded testtube is stable in water

Answer 1

A loaded test tube is stable in water because the density of the loaded test tube is higher than that of water. This means that the test tube will sink into the water and be supported by the buoyant force acting upwards on it. Additionally, the weight of the loaded test tube helps to keep it stable in the water, as it resists any external forces that may try to tip it over. Overall, the combination of the density of the test tube and the weight of its contents help to keep it stable in water.