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Anonymous users2024-02-06P= GH (P is the pressure, is the density of the liquid, the density of water is 1 10 3kg m 3, g is the gravitational acceleration take n kg, h is the height from the pressure point to the liquid level).
The deeper the water, the greater the pressure, that is, the greater the pressure, because the pressure of the liquid is proportional to the depth of the water, and the deeper the water, the greater the pressure (in layman's terms, the ** of this pressure is the weight of the water body on the object). If it is in still water there is only hydrostatic pressure, if it is in moving water, it is a combination of hydrostatic pressure and hydrostatic pressure.
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Anonymous users2024-02-05It's like covering a quilt, the more you cover, the heavier it feels, and the more pressure you have. The deeper the water, the more quilts there are, and of course the greater the pressure.
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Anonymous users2024-02-04Centimeters of water and millimeters of mercury can be converted to each other, and the conversion formula is as follows:
1mmhg = 。
1cmh2o = 。
A unit of measurement is a scalar quantity defined and adopted according to an agreement, with which any other quantity of the same kind can be compared so that the ratio of two quantities is expressed as a number. Units of measure have names and symbols that are given according to convention.
A unit of measure refers to a specific quantity that is conventionally defined and adopted to quantitatively represent the magnitude of the same quantity.
The various physical quantities have their units of measurement, and the standard for the basic units of measurement is the quantity displayed by the selected substance in the specified potato bush conditions, and the choice of the basic quantity can be different in different periods and in different disciplines.
The amount exported. Since the basic quantity is derived from the relevant formula, other quantities are called derived quantities. The unit of the exported quantity is called the export unit. For example, the single-imitation hand pin position of speed is composed of length and time units, which are represented by "m s".
Combined units. A unit that is made up of units of other quantities is called a combined unit. For example, the unit of pressure (Pa) can be composed of the unit of force (n) and the unit of area ( ), i.e., n.
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Anonymous users2024-02-03Because the pressure p= gh, is the density of water, g needless to say, h is the depth of water, isn't it obvious, and g is constant, so the pressure of water is only related to its depth, that is to say, the deeper the water, the greater the pressure.
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Anonymous users2024-02-02Pressure = density * g * depth of liquid, as can be seen in this formula, the greater the depth, the greater the pressure. It has to do with the mass of the liquid on the vertical line you're on, not the total mass of the liquid. Pressure is essentially the gravitational force of a liquid.
For example, if you dive to a depth of 1 meter, then the water above you has a pressure on you, and the area of force is the area of your body in the vertical direction. There is also pressure in the left and right directions, but it cancels each other out, and only the downward pressure will have an effect on you because of the gravitational pull of the earth.
The problem above is obviously the pressure on the ground of the B cup.
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Anonymous users2024-02-01Let there be a square object with a side length of a and a in b, then the pressure is .
Pressure p=f s
f=mg=pWater density Hga2 (gravity of water above cube a. Note that it is above A. That is, the gravitational force of the water in a 2h).
Pressure p=pWater densityHga2A2=PWater densityHg The definition of pressure is:
The force of gravity experienced per unit area.
In other words, no matter how much water is in cup A and cup B, the pressure is only related to the quality of the water on object A.
It is related to the water column of a 2h.
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Anonymous users2024-01-31p=ρgh
g unchanged. The larger the h, the larger the p.
Buoyancy is produced by the pressure difference between the upper and lower parts of an object in the water.
It has nothing to do with gravity.
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