Traditional Culture Encyclopedia - Travel guide - Last year, during the "Eleventh" Golden Week, Xiao Juan traveled abroad and bought a hard commemorative cup. She wanted to know the density of this material, so she measured the lid with a balance.

Last year, during the "Eleventh" Golden Week, Xiao Juan traveled abroad and bought a hard commemorative cup. She wanted to know the density of this material, so she measured the lid with a balance.

( 1)∑ρ= mV，

∴ Volume of closing the lid:

V cover =V water =m water ρ water =15.6g1g/cm3 =15.6cm3;

Density of this material:

ρ=m cover v cover = 46.8g15.6cm3 = 3g/cm3 = 3x103kg/m3;

(2)∑ρ= mV，

∴ Volume of materials used in empty cups:

V cup =m cup ρ =183g3g/cm3 = 61cm3.

Answer: (1) The density of this material is 3×103 kg/m3; /m3；

(2) If the measured mass of the whole empty cup is 183g, the volume of the materials used in the commemorative cup is 6 1cm3. ..