Question

Volumen y radio de una moneda de 9 gramos y un diametro de 26,3 mm

Answer 1

R = diametro /2

r = 26.3 / 2 = 13.15 mm

r = 13.15 /10 = 1.315 cm

v = 4/3 x π x r³

V = 4/3 x (3.14)(1.315 cm)³

V = 9.52 cm³

d = m / v

d = 9 g / 9.52 cm³

d = 0.945 g/cm³