explain and show all work please do all parts A to C all previous answers are wrong so don't use them or I will give you a thumbs down and report you

Bernoulli-3. (20 points) A pressurized tank of water has a 10-cm-diameter orifice at the bottom, where water discharges to the atmosphere. The water level is 2.5m above the outlet. The tank air pressure above the water level is 250kPa (absolute) while the atmosphere preasure is 100kPa. Neglecting frictional effects, determine the initial volume discharge rate of water from the tank. Bernoulli-4. (20 points) Air flows through a pipe at a rate of 120L/s. The pipe consists of two sections of diameters of 22cm and 10cm with a smooth reducing section that connects them. The pressure difference between the two pipe section is measured by a water manometer. Neglecting friction effects, determine the differential height of water between the two pipe sections. Take the air density to be 1.20kg/m3. Bernoulli-2. (5pts) What is stagnation pressure (use both words and equation)