-
The buoyancy of water is equal to the density of the water multiplied by the acceleration due to gravity, multiplied by the volume of the object wading into the water.
-
By the way, there may be an advantage to this understanding (it is still convenient to calculate the buoyancy formula): when this square is immersed in water or air, the force of water or air to lift the object upwards is called "buoyancy". For example, from.
-
1. Weighing method: F float = g in the air G liquid Use a spring scale to weigh the gravity of the object in the air, record it as g in the air, and then immerse the object in the liquid, the reading becomes smaller, and it is recorded as g liquid, and the reduced part is the buoyancy of the object. 2. Archimedes' principle experimental results method:
F float = g discharge According to the experimental results of Archimedes' principle, it can be seen that the buoyancy force on the object is equal to the weight of the liquid discharged by the object (g discharge) 3. Formula method: F float = p liquid v discharge g If in the Archimedes experiment, the volume of the liquid discharged by the object is measured instead of weighing the liquid weight, and the gravity of the liquid discharged can be obtained according to g = mg = p liquid v discharge, which is equal to the buoyant force.
Fourth, the pressure difference method: f float = f up f down The object is immersed in the liquid, the pressure of the front and back, the right and the left can cancel each other, and the upward pressure at the bottom is greater than the downward pressure on the surface, and the object is generally subjected to a vertical upward support, which is buoyancy, so the buoyancy can be found according to the pressure difference. 5. Equilibrium condition method for floating bodies:
f float = g from = p object v object g float includes floating, suspended objects, which are equal in size because they are at rest by the upward buoyancy and the downward gravity are a pair of balanced forces. Only the weight of the object itself is required, which is the buoyancy of the object. 6. Displacement method:
f float = displacement (kg) g The full load weight of the ship is generally expressed in displacement, that is, the mass of the water discharged, and the ship is also a buoy, according to the buoy balance conditions, it is also obtained: the total f float received by the ship = g total, and the displacement (kg) g is the weight of the ship discharging the water, that is, the buoyancy, and the total gravity of the ship and cargo.
-
1.Buoyancy = density of liquid * g * volume of liquid discharged g = 2The object is hung on a spring scale and weighed in air and liquid, and the difference between the two indicators of the spring scale is the amount of buoyancy on the object.
3.If the object floats on the surface of the liquid, the amount of buoyancy experienced by the object is equal to its own gravitational force using the two-force equilibrium condition.
4.From the analysis of the causes of buoyancy, the upward pressure on the lower surface of the object immersed in the liquid is always greater than the downward pressure on the upper surface, and the difference between these two pressures is buoyancy.
-
The height of the floating platform is meters (refers to the actual height), the drainage buoyancy is 1000 * area, the total weight is 4151 + 14500 = 18651kg, and the total weight occupies the area and the buoyancy is 18651
The rated buoyancy of the platform is 320kg m2 (when the water surface height of the floating platform is higher than the water surface is meters), the self-weight of the floating platform is calculated according to the buoyancy of 320kg m2, and the drainage water depth is 400-320 1000 = depth.
According to 4151kg, the self-weight of the floating platform and the drainage depth is 4151 deep.
Drainage depth required for gross weight.
-
According to the condition that buoyancy is equal to gravity.
Calculate the weight of the wooden house and the pontoon = ton + ton = ton.
The density of water is approximately about 1000 kilograms of cubic meters.
Buoyancy is calculated as follows: buoyancy = water density * intrusion volume * gravitational acceleration coefficient = total weight * gravitational acceleration coefficient.
It can be calculated that the volume of the intrusion of the floating platform is cubic meters.
Under the pontoon platform does not fall, the height of the intrusion is.
-
Buoyancy is the upward force exerted by the object equal to the sum weight of the liquid or gas discharged by the object. Here are four common formulas for calculating buoyancy:
1.For an object immersed in a liquid, a sphere buoyed in a liquid, the density can be used to calculate the buoyancy force:
Buoyancy = 4 3 * radius 3 * density * heavy acceleration.
3.For an object immersed in a liquid with a planar area a, the area of the object, the density of the liquid, and the height of the liquid are calculated to calculate the buoyant:
Buoyancy = surface density of liquid at the same height * acceleration due to gravity.
4.For an object immersed in gas, buoyancy can be calculated by summing up the density of the gas:
Buoyancy = volume * density * acceleration due to gravity.
These formulas can be used to calculate buoyancy in different situations, but note that the units in the formula need to be consistent to ensure the accuracy of the calculation.
-
Buoyant force refers to the upward force exerted by an object on its source when it is placed in a fluid (such as water or air). Here are four common formulas for calculating buoyancy:
1.Archimedes' Principle Formula:
The buoyancy force is equal to the weight of the liquid being dislodged and can be expressed as:
f = v * g
where F denotes buoyancy, which denotes the density of the fluid, V denotes the volume occupied by the object in the liquid, and G denotes the acceleration due to gravity.
2.Volume Method Formula:
The buoyancy force is equal to the volume of the fluid being dislodged by the object multiplied by the density of the fluid and can be expressed as:
f = m_liquid * g
where m liquid is the mass of the liquid being dislodged and g is the acceleration due to gravity.
3.Quality Method Formula:
Buoyancy is equal to the mass of the object multiplied by the density of the fluid and the product of the acceleration due to gravity and can be expressed as:
f = v * g
where v denotes the volume of the object, denotes the density of the fluid, and g denotes the acceleration due to gravity.
4.Angular Equilibrium Method Formula:
The buoyancy force is related to the difference between the volume and height of the fluid discharged by the object and can be expressed as:
f = g * v_diff
where denotes the density of the fluid, g denotes the acceleration due to gravity, and v diff denotes the difference between the volume and height of the fluid dislodged by the object.
These formulas can be calculated according to the specific situation and the requirements of the problem.
1.Imagine a cube with a regular shape, submerged in water, its 6 faces are subject to the pressure of water, because its left and right sides, the front and rear sides of the surface under the water depth is the same, then the pressure of the water is also the same, the pressure is equal in size, the direction is opposite, balanced with each other, and the upper and lower sides are in different depths in the water, the pressure of the water is small, the pressure is also different, the lower surface is subjected to the upward pressure of the water f is greater than the upper surface by the pressure of the water f downward. The net force of the pressure on the object is the buoyant force of the liquid on the object. >>>More
The conversion between volume and weight units must introduce the density p. ** and the density of refined oil PT indicates that at a certain temperature, the volume of oil per cubic meter is P tons. The conversion relationship is: >>>More
The magnitude of the buoyant force experienced by an object in the water is equal to the magnitude of the weight (gravitational force) of the water that the object is dissipating. It is emphasized here that the two values are equal in magnitude, and it is not possible to say "...... in generalBuoyancy = ......Gravity". Because "force" is a physical quantity, it has directionality in addition to magnitude, buoyancy up and gravity downward, the two can only be a pair of balanced forces and cannot be equal.
In the second question, it is necessary to understand the principle of buoyancy. The buoyancy force is only related to the volume of the dispelled liquid and the density of the liquid, i.e., f float = liquid density p the volume v of the dislodged liquid of the object v gravitational acceleration g. The nut falls out, but it should be noted that the whole bottle is suspended in the question stem, indicating that the whole bottle is immersed in water, and the volume v row of the estimated water body is still equal to the volume of 3 bottles, and there is no change. >>>More
It's not air buoyancy, but it's an upward force brought about by air. >>>More