Question

Рассчитайте давление на глубине 2м, 20дм, 200см, 2000мм, 2км в воде,спирте,бензине.

Answer 1

Вода = p = p*g*h = 1000* 10* 2m = 20000
спирт = 800 *10*2= 16000
бензин = 710*10*2 = 14200  

Answer 2

Calculation of Pressure at Different Depths

To calculate the pressure at different depths, we can use the formula for pressure:

Pressure = Density × Gravity × Depth

Where: - Density is the density of the fluid (in kg/m³) - Gravity is the acceleration due to gravity (approximately 9.8 m/s²) - Depth is the depth of the fluid (in meters)

Let's calculate the pressure at different depths in water, alcohol (spirits), and gasoline (benzene).

Pressure in Water:

The density of water is approximately 1000 kg/m³.

1. At a depth of 2 meters: - Pressure = Density × Gravity × Depth - Pressure = 1000 kg/m³ × 9.8 m/s² × 2 m - Pressure = 19,600 Pascal (Pa)

2. At a depth of 20 decimeters (dm): - 1 decimeter (dm) = 0.1 meter (m) - Depth = 20 dm × 0.1 m/dm = 2 meters - Pressure = 19,600 Pa

3. At a depth of 200 centimeters (cm): - 1 centimeter (cm) = 0.01 meter (m) - Depth = 200 cm × 0.01 m/cm = 2 meters - Pressure = 19,600 Pa

4. At a depth of 2000 millimeters (mm): - 1 millimeter (mm) = 0.001 meter (m) - Depth = 2000 mm × 0.001 m/mm = 2 meters - Pressure = 19,600 Pa

5. At a depth of 2 kilometers (km): - 1 kilometer (km) = 1000 meters (m) - Depth = 2 km × 1000 m/km = 2000 meters - Pressure = 1000 kg/m³ × 9.8 m/s² × 2000 m - Pressure = 19,600,000 Pascal (Pa)

Pressure in Alcohol (Spirits):

The density of alcohol varies depending on the type. For the purpose of this calculation, let's assume the density of alcohol is approximately 800 kg/m³.

1. At a depth of 2 meters: - Pressure = Density × Gravity × Depth - Pressure = 800 kg/m³ × 9.8 m/s² × 2 m - Pressure = 15,680 Pascal (Pa)

2. At a depth of 20 decimeters (dm): - Depth = 2 meters - Pressure = 15,680 Pa

3. At a depth of 200 centimeters (cm): - Depth = 2 meters - Pressure = 15,680 Pa

4. At a depth of 2000 millimeters (mm): - Depth = 2 meters - Pressure = 15,680 Pa

5. At a depth of 2 kilometers (km): - Depth = 2000 meters - Pressure = 800 kg/m³ × 9.8 m/s² × 2000 m - Pressure = 15,680,000 Pascal (Pa)

Pressure in Gasoline (Benzene):

The density of gasoline (benzene) varies depending on the type. For the purpose of this calculation, let's assume the density of gasoline is approximately 700 kg/m³.

1. At a depth of 2 meters: - Pressure = Density × Gravity × Depth - Pressure = 700 kg/m³ × 9.8 m/s² × 2 m - Pressure = 13,720 Pascal (Pa)

2. At a depth of 20 decimeters (dm): - Depth = 2 meters - Pressure = 13,720 Pa

3. At a depth of 200 centimeters (cm): - Depth = 2 meters - Pressure = 13,720 Pa

4. At a depth of 2000 millimeters (mm): - Depth = 2 meters - Pressure = 13,720 Pa

5. At a depth of 2 kilometers (km): - Depth = 2000 meters - Pressure = 700 kg/m³ × 9.8 m/s² × 2000 m - Pressure = 13,720,000 Pascal (Pa)

Please note that these calculations assume a constant density for the fluids, which may not be entirely accurate in real-world scenarios. Additionally, the values provided are approximate and may vary depending on the specific conditions and properties of the fluids.