a 50 cubic decimetres cylinder is filled with helium gas at a pressure 300kPa. the valve of a cylinder is opened at a constant temperature and the atmospheric pressure is 100kPa. what volume of gas will escape the cylinder?​

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

Exercise 2. find the wavelength of a photon emitted when an electron jumps from the n = 3 energy level down to the n = 2 energy level. where is this photon in the electromagnetic spectrum?