The problem involves calculating the force required to lift a lid from a box that has been evacuated to a specific internal pressure, with consideration of the atmospheric pressure in Denver. The subject area relates to fluid mechanics and pressure differentials.
There is an ongoing exploration of the pressure values involved, with some participants clarifying and correcting previous statements. The discussion reflects a mix of attempts to understand the implications of the pressure differences without reaching a consensus on the final calculation.
Participants are addressing potential confusion over the notation of pressure values and their interpretations, which may affect the calculations. The atmospheric pressure is noted to be lower than typical sea level pressure, which is relevant to the problem.
Can you clarify that pressure value?lalahelp said:Homework Statement
A lid is put on a box that is 14 cm long, 12 cm wide, and 8.0 cm tall and the box is then evacuated until its inner pressure is 9.0 104 Pa.
lalahelp said:the pressure value is 67500 pa