Respuesta :

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

The density is 1814kg[tex]m^{-3}[/tex].

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 = [tex]\pi (\frac{0.02121}{2})^{2} * 0.00195[/tex]

= 0.000002755

Density = 0.005 / 0.000002755 = 1814.279

Density ≅ 1814[tex]kgm^{-3}[/tex]

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

#SPJ2