A water tank has circular cross-sections and profile as illustrated below. There is a hole on the base of the tank (shaded grey). The area of this hole is 1m?. At time t = the tank is full. How long does it take for the tank to be completely empty? O seconds 1m 1m 1m 2m 1m

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Density of Solids

The density of a substance refers to how much matter is present in a given amount of space. It is expressed as the ratio of the mass of the substance to its volume.