There is a solid copper cube on the table. What is the mass of a cube if it exerts a pressure of 8 kPa on the table.

Data: P (pressure exerted on the table by a solid copper cube) = 8 kPa (8 * 10 ^ 3 Pa).

Reference values: ρm (copper density) = 8900 kg / m3; g (acceleration due to gravity) = 9.81 m / s2.

1) Determine the length of the edge of the copper cube: P = Ft / S = m * g / S = ρm * V * g / S = ρm * h * g and h = a = P / (ρm * g) = 8 * 10 ^ 3 / (8900 * 9.81) = 0.0916 m.

2) Calculate the mass of the copper cube: m = ρm * V = ρm * a ^ 3 = 8900 * 0.0916 ^ 3 ≈ 6.85 kg.

Answer: The mass of a solid copper cube is 6.85 kg.