Nitrogen boils at -195°C, because it is normally a gas at room temperature. At -250°C, it is a: solid, liquid, gas

At a temperature of 393 k, the temperature of a sample of nitrogen is 1.07 atm what will the pressure be at a temperature of 478 k

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

Which method would be best to separate a mixture of sand and gravel