A 1938 nickel has a diameter of 21.21 mm, a thickness of 1.95 mm, and weighs 0.04905 N. What is its density?
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\(m^{-3}\).
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\(kgm^{-3}\)
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