Ametal worker wants to figure out the cost of making a rectangular iron bar. he knows that the required dimensions of the bar are 8.0 cm (width), 0.40 cm (height), and 310 cm (length). if this kind of iron costs $0.015 per cm3, what is the cost of making the bar (to the nearest dollar)? a$5 b $15 c $37 d $93

What is the force of attraction between the particles in a salt crystal

What is the area in square meters of 448 g ai foil that has a thickness of 23921 nm? the density is 2.70 g/cm

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.