When a .22-caliber rifle is fired, the expanding gas from the burning gunpowder creates a pressure behind the bullet. This pressure causes the force that pushes the bullet through the barrel. Suppose the barrel has a length of 0.674 m and an opening whose radius is 2.68 x 10-3 m. A bullet (mass = 2.6 x 10-3 kg) has a speed of 376 m/s after passing through this barrel. Ignore friction and determine the average pressure of the expanding gas.

0.09 moles of sodium sulfate in 12 ml of solution

Find the mass in grams of 1.37x1020 particles of h3po4

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.