📝 Density And Mass Of Alamina

Q1. A solid cube of Alamina has side length \(5\text{ cm}\) and density \(2.7\text{ g/cm}^3\). What is its mass?

💡 Difficulty: easy | ✅ Correct: B

Q2. A spacecraft uses an Alamina alloy panel of area \(3\text{ m}^2\) and thickness \(0.02\text{ m}\). If the panel must not exceed a mass of \(150\text{ kg}\), what is the maximum allowable density?

💡 Difficulty: medium | ✅ Correct: B

Q3. An Alamina cable of length \(L\) has linear density \(\lambda(x)=\lambda_0(1+x/L)\). If the total mass is \(M=500\text{ kg}\) and \(\lambda_0=5\text{ kg/m}\), find \(L\).

💡 Difficulty: hard | ✅ Correct: C