Question

A

It do
While doing dishes, Zvi drops his
3.0x10 3kg platinum wedding band
into the dishwater, displacing a
volume of 1.40x107m3 of water,
what is the density of the platinum
band?
n
CSS c
sion
im
al
Select one:
a. 2.56x104 kg/m3
b. 1.0x104 kg/m3
Di
c. 0.5x104 kg/m3
IL
d. 2.14x104 kg/m3
IL:​

Answer 1

d. 2.14 x 10⁻⁴ kg/m³

Step-by-step explanation:

Density is defined as the mass of an object per unit volume occupied by that object. The formula of density is, therefore, given as follows:

`\rho = (m)/(V)`

where,

ρ = density of platinum band = ?

m = mass of platinum band = 3 x 10³ kg

V = Volume displaced by Platinum band = 1.4 x 10⁷ m³

Therefore,

`\rho = (3\ x\ 10^(3)\ kg)/(1.4\ x\ 10^(7)\ m^(3))\\\\\rho = 2.14\ x\ 10^(-4)\ kg/m^(3)`

Hence, the correct option is:

d. 2.14 x 10⁻⁴ kg/m³