I need help understanding this problem. Wouldn't the pressure at D just be atmospheric pressure since there is no liquid on top of it. I chose answer A since at this point there is the pressure of the fluid above pgh), but the correct answer is D. There is a similar problem in the lecture #106 where they say the answer is B since A C and D all experience only atm pressure. Why is the case different in Exam 5 # 99?
Also, I thought the formula P= pgy only applied when looking at a liquid at a depth y, as in there is a depth of y liquid above the point of interest. How can this formula be used when at point D it is at dept 10 cm, but there is only 1 cm of liquid above point D? Is it because both ends are sealed shut?
Also, I thought the formula P= pgy only applied when looking at a liquid at a depth y, as in there is a depth of y liquid above the point of interest. How can this formula be used when at point D it is at dept 10 cm, but there is only 1 cm of liquid above point D? Is it because both ends are sealed shut?
Last edited:
