![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
1. When an oil tanker sails in the Yangtze River, the volume of boiled water is 300 cubic meters. When 100 cubic meters of fuel oil is unloaded at the wharf, how many cubic meters of boiled water does the oil tanker discharge? 2. Give some examples of "ascending" depending on air buoyancy, and give some examples of "ascending" depending on air velocity?
1 multiply the density of water by 300 minus the density of oil by 100, and then divide by the density of water
Hot air balloons, airships, airplanes, fighters, etc., paragliders
RELATED INFORMATIONS
- 1. On all deformations of buoyancy formula To be complete It's all the variations of the formula of Archimedes' principle
- 2. Calculation formula of buoyancy
- 3. Buoyancy formula
- 4. The formula of buoyancy All formulas for buoyancy
- 5. How to use atmospheric pressure to drop an egg into a bottle? And how to make the egg spit out of the bottle?
- 6. Atmospheric pressure formula?
- 7. What is the formula for calculating atmospheric pressure?
- 8. Atmospheric pressure calculation formula
- 9. Floating, sinking and floating
- 10. Xiao Ming used the density of 1.5 × 10 & sup3; kg / M & sup3; to build a "boat". The volume of the clay he used was 20cm & sup3; the maximum drainage volume of the boat was 100cm & sup3;; ask: the maximum buoyancy of the boat he built? (g = 10N / kg)
- 11. First, a bag of water is packed in a light plastic bag, and the gravity of the water is measured by a spring At this time, put it into a cylinder of water at a constant speed, and the indication of dynamometer changes? (I think it should be kept unchanged. After all, the density is equal, so there is no pressure difference.)
- 12. A copper block weighing 48.06n is completely immersed in water. What is the buoyancy received. (P copper = 8.9 * 10 to the third power of kg / m, G is 10N / kg) How and why
- 13. In the center of a square horizontal table with an area of 0.3 square meters, there is a circular container filled with alcohol. The density of alcohol is 0.8 * 10 & sup3; kg / M & sup3;, and the bottom area of the container is 500 square centimeters. Now put a small solid ball with a mass of 0.9 kg and a density of 0.9 * 10 & sup3; kg / M & sup3; into the container Judge whether the ball floats, floats or sinks into the container after it is forbidden? What is the buoyancy of the ball at this time? 84n, I also count 8N Is the land area in the condition useless? Does it have anything to do with that depth? But the answer is 7. This is an exercise in the universal thinking training program. Our teacher only talks about the results, so I have to teach myself.
- 14. Pressure and buoyancy 20. (09 Ningbo) as shown in the figure, there is a certain amount of water in an inclined cylindrical container. There is a 5N ball floating on the surface of the container. If the ball is taken out, the decrease of water pressure on the bottom of the container is () A. Greater than 5N B. equal to 5N C. Less than 5N D. It depends on the size of the ball
- 15. What's the formula of pressure and buoyancy?
- 16. If the wooden block floats on the water surface, add salt into the water and stir it evenly. After the module is still, the pressure on the bottom of the cup will be (the buoyancy on the wooden block will be ((select "increase", "unchanged" or "decrease") and explain the reason (more details), Some people say that the depth will not change after adding salt, but I think the depth should decrease. Second, I understand,
- 17. Calculation formulas for pressure, buoyancy, work, power and mechanical efficiency, as well as variant forms, There are pressure, buoyancy, work, power, mechanical efficiency these calculation problems can not do, how to do?
- 18. An iron ball weighing 1.47 n is hung under the spring scale. Immerse the iron ball in the water. The indication of the spring scale is 0.49 n. find out: (1) the buoyancy of the iron ball; (2) the volume of the iron ball; (3) is the iron ball hollow or solid?
- 19. How to solve the buoyancy problem in junior high school physics
- 20. F floating = g row = mg = ρ liquid V row g, where m is the mass of what?