Question

. Пластиковый шар плавает на поверхности воды, погрузившись в неё на четверть своего объёма. Масса шара 2000 г. Плотность воды 1000 кг/м3. Вычислите плотность материала шара. Чему равен объём шара. Помогите пж!!!

Answer 1

Ответ:

плотность 1,8 объем 3600

Объяснение:

Answer 2

Calculation of Density and Volume

To calculate the density of the material of the ball, we can use the formula:

Density = Mass / Volume

Given that the mass of the ball is 2000 g and it displaces a quarter of its volume when submerged in water, we can calculate the volume of the ball using the following equation:

Volume = (4/3) * π * r^3

To find the radius of the ball, we need to know the volume of water displaced by the ball. Since the ball is submerged to a quarter of its volume, the volume of water displaced is equal to a quarter of the volume of the ball.

Let's calculate the density and volume step by step.

1. Calculate the volume of water displaced by the ball: - The volume of water displaced is equal to a quarter of the volume of the ball. - Let's denote the volume of water displaced as V_water. - V_water = (1/4) * V_ball

2. Calculate the volume of the ball: - We can rearrange the equation for the volume of a sphere to solve for the radius: - V_ball = (4/3) * π * r^3 - Substitute the value of V_water into the equation to find the radius.

3. Calculate the density of the material of the ball: - Use the formula: Density = Mass / Volume - Substitute the values of mass and volume into the equation to find the density.

Let's perform the calculations.