Question

С какой силой давит атмосфера на крышку ученического стола размером 110 см на 50 см атмосферное давление считается нормальным

Answer 1

Сила Давления F=p*S

F=10^5*110*50*10^-4=55000H=55кН

Answer 2

Atmospheric Pressure on the Desk

The atmospheric pressure at sea level is approximately 101.3 kilopascals (kPa) or 1013 millibars (mb) To calculate the force exerted by the atmosphere on the surface of the desk, we can use the formula:

Force = Pressure × Area

Given that the desk has a surface area of 110 cm by 50 cm, we can convert these dimensions to meters (1 m = 100 cm) to calculate the force.

Calculation

The area of the desk in square meters is: Area = (110 cm × 50 cm) / (100 cm/m) × (110 cm × 50 cm) / (100 cm/m) = 1.1 m × 0.5 m = 0.55 m²

Using the atmospheric pressure of 101.3 kPa, we can calculate the force exerted by the atmosphere on the desk: Force = 101.3 kPa × 0.55 m² = 55.715 kN

Therefore, the atmospheric pressure exerts a force of approximately 55.715 kilonewtons on the surface of the desk.

It's important to note that this calculation assumes uniform atmospheric pressure and neglects any additional factors that may affect the actual force exerted on the desk.