Q3: Manometer connected to car tire, the height of the mercury level increased by 80 cm above the air level which is 10 cm below the measuring point on the left limb, density of the air is 1.29 Kg/m³, find the car pressure? If the height of the mercury level is decreased to 600 mm then what happens to car pressure. Discuss the results for car pressure.

A U-tube manometer filled with water, density 62.4 lbm/ft^3, shows a height difference of 10 in, what is the gauge pressure?

3. A mercury barometer at the base of Mt. Makiling reads 654 mm and at the same time another barometer at the top of the mounta in reads 480 mm Assuming specific weight of air to be constant at 12 N/m', what is the approximate height of Mt. Makiling?

An open tank contains water up to a depth of 1.2m from the bottom and above it mercury for a depth of 0.8m and above it an oil of specific gravity 0.8 for a depth of 1m. Assume the atmospheric pressure is 1 bar.  Find the gauge pressure and absolute pressure                        i) at the bottom of the container,                        ii) at the interface of water and mercury and                       iii) at the interface of an oil and mercury.                    (   i) At bottom  Gauge Pressure = ________________N/m2 Absolute Pressure =_________________ N/m2 ii) At the interface of water and mercury  Gauge Pressure =_______________ N/m2 Absolute pressure =_____________ N/m2 iii) At the interface of oil and mercury Gauge Pressure =_____________ N/m2 Absolute Pressure = _________________ N/m2