Question

Почему стеклянная бутылка наполненная воздухом, плавает в воде?1) Плотность стекла меньше плотности воды.2) Вес вытесненной ею воды равен силе тяжести, действующей на плавающую бутылку. 3) Сила тяжести, действующая на бутылку с воздухом, больше архимедовой силы.4) Стекло в воде не тонет.

Answer 1

Однозначно ответ 2   Вес бутылки и архимедова сила равны.

Answer 2

Why Does a Glass Bottle Filled with Air Float in Water?

A glass bottle filled with air floats in water due to a combination of factors:

1. Density of Glass: The density of glass is less than the density of water, allowing it to float. 2. Buoyant Force: The weight of the water displaced by the bottle is equal to the force of gravity acting on the floating bottle, allowing it to remain afloat. 3. Archimedes' Principle: The buoyant force acting on the bottle with air is greater than the weight of the bottle, causing it to float. 4. Buoyancy of Glass: The glass in water does not sink due to its buoyant force exceeding its weight.

These factors combined explain why a glass bottle filled with air can float in water.