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Why Does an aluminum can float on water but an aluminum pole does not?
Because the overall density of a can is less than the density of water, a solid aluminium pole has a density greater than water
If a aluminum foil is pounded in a sheet of paper what physical propertie has changed?
Density and Luster.
Aluminum sphere float in water?
If it was solid, no it would not float in water since it would displace less water than its weight. In other words, the density of aluminium is higher than the density of water, and denser objects will sink. If it were a hollow sphere and displaced more weight in water than its own weight, it could float - but that would not be by virtue of the density of aluminum, it would be because it was hollow.
How much does one cubic centimeter of aluminum weigh?
The density of aluminum is 2.7 gm/cc3 . So your 'cc' of aluminum contains 2.7 grams of mass. Assuming that it's located on or near the surface of the earth, it weights 0.026 newtons (0.952 ounce). (both rounded)
Which has the greater density 5kg of lead or 10kg of aluminum?
Lead will always have the greater density compared to aluminium. The weight only influences the volume in question. 10kg of Al will be much more(bigger in size) than 5kg of lead.
