An object with a volume of 100cm and a bottom area of 10cm is placed on a horizontal table with a pressure of 2 × 10 PA

An object with a volume of 100cm and a bottom area of 10cm is placed on a horizontal table with a pressure of 2 × 10 PA


When the object is placed on the horizontal table, the gravity g = f = 2nm = g / g = 2n / 10N / kg = 0.2kg, ρ = m / v = 0.2kg/1 × 10 ^ - 4m & # 179



A cylindrical container, weighing 20 N, with a bottom area of 2 × 10 ^ - 2 square meters, is placed on a horizontal table and filled with water 10 cm deep
Find the pressure and pressure of water on the bottom of the cup,


The pressure of water on the bottom of the cup P = ρ GH = 1 × 10 & # 179; × 10 × 10 △ 100 = 1 × 10 & # 179; PA
The pressure of water on the bottom of the cup is n = PS = 1 × 10 & # 179; × 2 × 10 ^ - 2 = 20n
To distinguish between boiling water on the bottom of the cup and the cup on the table



As shown in the figure, the mass of the container is 500g, the bottom area is 100cm ^ 2, and it is placed in the center of the horizontal table. When 1.2kg water is poured into the container, the water depth is 10cm
Then: 1. What is the pressure of water on the bottom of the container? 2. When 200 g wood blocks are put into the water in the container, how much is the pressure of the container on the horizontal table increased when the water surface rises by 1 cm?


It is known that: M = 500 g = 0.5 kg, s = 100 square cm = 0.01 square m, ρ water = 1 * 10 ^ 3 kg / m3, m water = 1.2 kg, H = 10 cm = 0.1 M. to find: (1) F1; (2) Δ P (1) the pressure of water on the bottom of the container is P1 = ρ water * g, H = 1 * 10 ^ 3 * 10 * 0.1 = 1000 PA



There is a certain amount of water in the cylindrical container, which is placed on the horizontal table. The pressure of water on the bottom of the container is 5N, and the bottom area of the container is 100cm
The pressure of water on the bottom of the container


I'm lying on the bed. It's not convenient to calculate. Let me tell you the specific steps: first of all, we need to know the formula: pressure P = f / s, density = m / v. then the pressure of water on the bottom is equal to 5 divided by 0.0001 (pay attention to the unit). When we calculate the volume of water, we divide the mass of water by density. When we calculate the mass, we divide it by 5 and calculate the acceleration of gravity by 9.8