Final answer:
The pressure in a liquid that generates a force of 500 newtons on an area of 0.4m² is calculated using the formula P=F/A, resulting in a pressure of 1,250 Pascals (Pa).
Step-by-step explanation:
To calculate the pressure in a liquid that produces a force of 500 newtons on an area of 0.4m², you can use the formula for pressure:
Pressure (P) = Force (F) / Area (A)
Plugging in the given values:
P = 500 N / 0.4 m²
P = 1250 N/m²
Therefore, the pressure is 1,250 Pascals (Pa), which corresponds to option A.