Question 3 of 11 attempt 3 one component of a metal sculpture consists of a solid cube with an edge of length 0.325 m . the alloy used to make the cube has a density of 8490 kg/m 3 . find the cube's mass.

The mass of the alloy = 291.45 kg.

Explanation:

Density: This can be defined as the ratio of the mass of a body to the volume of that body. The S. I unit of density is kg/m³.

Mathematically, density can be represented as,

D = m/v Equation 1

Where D = density of the alloy. m = mass of the cube, v = volume of the cube.

Making m the subject of the equation,

m = D×v Equation 2

Given: D = 8490 kg/m³,

v =  volume of a cube = l³ where l= 0.325 m

v = 0.325³ = 0.0343281 m³

Substituting into equation 2

m = 8490×0.0343281

m = 291.45 kg.

Thus the mass of the alloy = 291.45 kg.

think about the oscillation of the toy shown in the video. when the toy is at the highest point of its motion, its velocity is zero and its acceleration is negative.