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Verified Answer :

Density = mass/volume
Mass of nickel = 0.04905/9.81=0.005kg
Volume of nickel = (\(\pi (\frac{0.02121}{2} )^{2} *0.00195\)
=0.000002755
 Density = 0.005/0.000002755 =1814.279 = 1810kg\(m^{-3}\)

The density is 1814kg\(m^{-3}\).

How to calculate density?

The formula for density is the mass of an object divided by its volume. In equation form, that's d = m/v, where d is the density, m is the mass and v is the volume of the object. The standard units are kg/m³.

By applying the formula, we get

D = m/v

v = m*d

v = \(\pi (\frac{0.02121}{2})^{2} * 0.00195\)

= 0.000002755

Density = 0.005 / 0.000002755 = 1814.279

Density ≅ 1814\(kgm^{-3}\)

What does density mean?

Density is the number of things which could be people, animals, plants, or objects in a certain area.

Learn more about density here: brainly.com/question/1354972

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