A scientist is calculating the density of an ore sample. The scientist measures the weight of the ore sample to be W =22.4 N in air. When the sample is suspended by a thin light cord and totally immersed in water, the tension in the cord is T= 14.2 N. What is the density of the ore sample that the scientist calculates? You can assume that any buoyant force from air is negligible. Please help me draw the intention, specific formula and a detailed step. Thank you