Measuring atmospheric pressure In a mercury-filled manometer (Figure P10.50)...

Measuring atmospheric pressure

In a mercury-filled manometer (Figure P10.50), the open end is inserted into a container of gas and the closed end of the tube is evacuated. The difference in the height of the mercury is 80 mm. The radius of the connecting tube is 0.50 cm. (a) Determine the pressure inside the container in newtons per square meter. (b) An identical manometer has a connecting tube that is twice as wide. If the difference in the height of the mercury is the same, then what is the pressure in the container?