If the mass ratio of two pieces of metal is 3:2 and the volume ratio is 2:1, then the density ratio is 3:2

RELATED INFORMATIONS

• 1. There is a piece of metal with a mass of 81g and a volume of 30cm3. Find out the density of the metal and what substance it may be
• 2. If there are two metal blocks a and B, the density of a is 2 / 3 of that of B, and the mass of B is twice that of a, then the volume of a is the same as that of B___ ?
• 3. If the mass ratio of a and B is 3:5 and the volume ratio is 1:2, then the density ratio of a and B is 0______ If their masses are equal, then the ratio of their volumes is______ ．
• 4. The volume of the upper and lower parts of the iceberg is V1 and V2 respectively. The known density of sea water is 1.03 × 10 cubic kilogram per cubic meter, and the density of water is 0.9 × 10 cubic kilogram per cubic meter. Try to calculate the percentage of the volume of the iceberg below the water surface in the total volume
• 5. If the density of sea water is 1.1 × 103kg / m3 and the density of ice is 0.9 × 103kg / m3, what is the volume of the iceberg exposed to the sea?
• 6. There is a 100 square meter hot air balloon, still in the air, with air density of 1.29 kg / m3 and buoyancy of a.12
• 7. At present, a hot air balloon has a volume of 120m3. If the known air density is 1.29kg/m3, what is the buoyancy when it is still in the air A solid object with a volume of 10 negative quartic M & # 179; weighs 2.8n. If the object is completely immersed in a certain liquid, the apparent number of the spring dynamometer is 1.8n, then what is the density of the liquid?
• 8. At present, a 100 cubic meter hot air balloon is still in the air. If the known air density is 1.29 kg / cubic meter, then the hot air balloon is still in the air
• 9. A hot-air balloon is still in the air. It is known that the total mass of the balloon and the object is 100 kg. What is the buoyancy at this time______ Cattle
• 10. A hot-air balloon with a mass of 0.3 tons rises at a constant speed in the air. The resistance level is 1 / 10 of the weight of the balloon. What is the buoyancy of the balloon?
• 11. What is the bulk density and apparent density of 5-10mm gravel?
• 12. What is the density of lime fly ash macadam in general
• 13. Use a glass, water and balance to measure the density of a small stone. Fill the glass with water and weigh it to 200 g. remove the glass filled with water from the balance and gently put in the small stone. When part of the water overflows, weigh it to 215 g. take the small stone out of the water and weigh it to 190 g. calculate the density of the stone
• 14. What is the density of pebbles
• 15. Calculation of apparent density of stone Take the dry stone with mass of M (unit: G) and saturate it with water, then put it into the jar, fill it with water and try to exhaust the air, and then close the bottle mouth with glass sheet to get the total mass of M1. Then pour the stone and water out of the jar, fill the bottle with water, and then close the bottle mouth with glass sheet to get the mass of M2. Let the water density be ρ w (unit: g / cm3), What's the apparent density of stones? Which master can explain this problem clearly? It's better to be more detailed,
• 16. What is the density of the stone
• 17. How many cubic meters is 1 ton pond slag equal to? Or the density of pond slag
• 18. What is dry density? Field dry density? Measured dry density? Maximum dry density? Wet density? And how to calculate the degree of compaction?
• 19. What is the principle of measuring density by sand filling method? I can't find the problems in the exercises at the back of the book
• 20. Calculation formula of compactness of earthwork subgrade (sand filling method),