g A heliox deep-sea diving mixture contains 2.0g of oxygen to every 98.0g helium. What is the partial pressure in atm in oxygen when this mixture is delivered at a total pressure of 8.5 atm

2. how is heavy water different from normal water

The grooves or folds of the brain are called

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here