Question

Помогите подалуйста!!! Срочно очень нужно на завтра!!! Помогите или у меня будет двойка!!! Длина аквариума 40 см, ширина 20 см, а высота 30 см. С какой силой вода давит на дно аквариума?

Answer 1

F=pghS (p-ро)

F=1000*10*0.3*0.2*0.4=240 Н

Answer 2

Calculation of Water Pressure on the Bottom of the Aquarium

To calculate the force with which water presses on the bottom of the aquarium, we need to determine the pressure exerted by the water. Pressure is defined as the force per unit area. In this case, the force is the weight of the water and the area is the bottom surface of the aquarium.

The weight of the water can be calculated using the formula:

Weight = density x volume x gravity

The density of water is approximately 1000 kg/m³, and the volume of water in the aquarium can be calculated by multiplying the length, width, and height of the aquarium:

Volume = length x width x height

The acceleration due to gravity is approximately 9.8 m/s².

Now, let's calculate the weight of the water and the pressure exerted on the bottom of the aquarium.

Length of the aquarium: 40 cm = 0.4 m Width of the aquarium: 20 cm = 0.2 m Height of the aquarium: 30 cm = 0.3 m

Volume of water: Volume = length x width x height Volume = 0.4 m x 0.2 m x 0.3 m Volume = 0.024 m³

Weight of water: Weight = density x volume x gravity Weight = 1000 kg/m³ x 0.024 m³ x 9.8 m/s² Weight = 235.2 N

The pressure exerted by the water on the bottom of the aquarium can be calculated by dividing the weight by the area of the bottom surface of the aquarium.

Area of the bottom surface of the aquarium: Area = length x width Area = 0.4 m x 0.2 m Area = 0.08 m²

Pressure: Pressure = Weight / Area Pressure = 235.2 N / 0.08 m² Pressure = 2940 Pa

Therefore, the water exerts a pressure of 2940 Pascal (Pa) on the bottom of the aquarium.

Please note that this calculation assumes that the water is evenly distributed and there are no other external forces acting on the aquarium.

I hope this helps! Let me know if you have any further questions.