Question

Допоможіть будь ласка. Маса 1 см. в кубі міді 9 г. Яка маса мідного куба, якщо довжина його ребра 5 см.

Answer 1

V=5³=125см³
125/1*9=1125г

Answer 2

Calculating the Mass of the Copper Cube

To calculate the mass of the copper cube, we can use the given density of copper, which is 9 g/cm^3, and the dimensions of the cube.

The formula to calculate the mass of an object using density and volume is:

mass = density × volume

Given: - Density of copper = 9 g/cm^3 - Length of the cube's edge = 5 cm

Using the formula, we can calculate the volume of the cube and then find its mass.

Calculations

The volume of a cube is given by the formula: volume = edge length^3

Substituting the given edge length: volume = 5 cm × 5 cm × 5 cm = 125 cm^3

Now, using the formula for mass: mass = 9 g/cm^3 × 125 cm^3 = 1125 g

So, the mass of the copper cube, with a length of 5 cm on each edge, is 1125 grams.