What is the physical pressure formula

What is the physical pressure formula

The calculation formula of liquid pressure is p = ρ GHP pressure, ρ density, g = 9.8n/kg (acceleration of gravity). Note that h is the height from the liquid surface. Air is subject to gravity and can flow. Therefore, there is pressure in all directions inside the air, which is called atmospheric pressure

Junior high school physics formula, please write the whole point, to write clearly, such as: P (pressure) = f (pressure) / S (stress area), so write, thank you!
Urgent! High school entrance examination! Please write clearly, or I don't understand, thank you! Give all the points!

If you spend 50 yuan to get the formula, you can see that you are eager. It is strongly recommended to buy a junior high school physics formula pamphlet, which has many advantages: 1. The formula in the pamphlet is almost correct (the answer on the Internet is much higher than the book's error rate); 2. It saves the trouble of printing (much more convenient than reading a computer or a hand machine); 3. It is easy to read and remember at any time in a small pocket

Pressure, pressure, junior high school physics
For example, 2012 Beijing multiple choice question 12. Please explain
Why the pressure on the desktop is the gravity of the liquid in the container + the gravity of the object? Isn't there buoyancy? According to the truth, buoyancy and gravity offset how there is pressure on the desktop? If it is immersed in water, then according to Archimedes' principle, is the rising liquid the gravity of the object?
The pressure of floating, floating and sinking on the desktop is equal to the so-called liquid gravity + object gravity. I don't understand it. Can you explain it?
Brain faint, Big Brother Big Sister help, good words have a bonus!

(1) In liquid a, the ball floats,
The pressure of container to table is F1 = g container + G liquid + GA;
(2) In liquid B, the ball is pulled into the water, and the container, liquid and ball are regarded as a whole,
The pressure of container to table is F2 = g container + G liquid + GA;
(3) In liquid C, the pellets are suspended,
The pressure of the container to the table is F3 = g container + G liquid + GA;
(4) In the liquid, the ball is pressed into the water, and the container, liquid and ball are regarded as a whole. In addition, the ball is subjected to downward pressure F,
The pressure of the container on the table is F4 = F + G container + G liquid + GA;
From the above analysis, F1 = F2 = F3 < F4
So choose B