Question

a cube of butter of side 2cm has a density 860 kg/m3. what is mass​

Answer 1

Answer:

mass of the butter cube is 6.88 grams

Explanation:

density: = mass/volume

given side 2cm = 2×10^-2m

volume of the cube = a^3

= (2x10^-2)^3

= 8x10^-6 m^3

mass = density x volume

= 860 × 8x10^-6

= 688 × 10^-5 kg

= 6.88 g

Step-by-step explanation:

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Answer 2

Answer:

Given,

side of the cube(a)= 2cm

Volume of cube= 6a²

= 6× (2)²

= 24cm³

density of cube= 860 kg/m³

= 0.86 g/cm³

Density= Mass/ volume

Mass= Density×volume

m= 0 .86×24

=20.64g

Therefore, mass of butter cube= 20.64 grams

Proof:-

DENSITY=MASS/VOLUME

= 20.64÷24

=0.86 gm/ cm³

=860kg/m³