The length L of a bar of metal at t o C is related to the length L 0 at 0°C by the equation L = L 0 (1+0.0002t). What is the length at 100°C for a bar of length 1 m at 0°C? The density ρ of a material...

The length L of a bar of metal at t o C is related to the length L₀
at 0°C by the equation L = L₀
(1+0.0002t). What is the length at 100°C for a bar of length 1 m at 0°C?

The density ρ of a material is defned by the equation ρ=m/V. What is the unit of density if m has the unit kg and V the unit m³?