What is the density of pebbles

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• 1. 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
• 2. What is the density of lime fly ash macadam in general
• 3. What is the bulk density and apparent density of 5-10mm gravel?
• 4. 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
• 5. 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
• 6. 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___ ?
• 7. 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______ ．
• 8. 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
• 9. 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?
• 10. 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
• 11. 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,
• 12. What is the density of the stone
• 13. How many cubic meters is 1 ton pond slag equal to? Or the density of pond slag
• 14. What is dry density? Field dry density? Measured dry density? Maximum dry density? Wet density? And how to calculate the degree of compaction?
• 15. 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
• 16. Calculation formula of compactness of earthwork subgrade (sand filling method),
• 17. Compactness calculation formula: mass of soil * density of sand / what / data given by laboratory / (1 + 0.01%). What is the second one? Sand filling method
• 18. Calculation steps of compactness measurement by sand filling method Do not need to write detailed steps, just write the known water content, vertebral mass, cylinder + sand mass, sand density, calculation steps. Calculate wet density, dry density, compactness!
• 19. Calculate the density of small stones The mass of small stone is m = 21.6, the volume of water is v = 40, the volume of water and small stone is V2 = 47, the volume of small stone is v = 7, the density of small stone is p = m / v = density!
• 20. The process of measuring and calculating the density of small stones Questions in Volume 1 of Grade 8