Explanation:

To calculate the force exerted by a pressure of 65 Pascal on an area of 7 m², we can use the formula:

Force = Pressure × Area

Given:

Pressure = 65 Pascal

Area = 7 m²

Plugging in the values into the formula:

Force = 65 Pascal × 7 m²

Force = 455 Newtons

Therefore, the force exerted by a pressure of 65 Pascal on an area of 7 m² is 455 Newtons.