Let ρal represent the density of aluminum and ρfe that of iron. find the radius of a solid aluminum sphere that balances a solid iron sphere of radius rfe on an equal-arm balance. (use any variable or symbol stated above as necessary.)

The radius of a solid aluminum sphere that balances a solid iron sphere of radius rFe on an equal-arm balance

Density is the amount derived from mass and volume

density is the ratio of mass per unit volume

With the same mass, the volume of objects that have a high density will be smaller than objects with a smaller density

The unit of density can be expressed in g / cm³ or kg / m³

Density formula:

ρ = density

m = mass

v = volume

A common example is the density of water 1 gr / cm³

the mass itself can be measured by the balance sheet, the arm balance

Known density of Al (aluminum) and Fe (iron)

Because both are spherical, the volume =

the mass of the two metals is the same because the scales are equal

mass Al = mass of Fe

ρ. V Al = ρ.V Fe

If the density of the fuel

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A drop of acetone

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the mass of a gold bar

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Keywords: density, volume, mass, arm balance