A closed tank contains water at the bottom and pressurized air at the top. The water discharges to the atmosphere from an orifice at the bottom of the tank. The height of water is 2.5 m and diameter of the orifice is 10 cm. Assume frictionless flow and the water discharge is 0.147 m/s. i) Calculate the air pressure in the tank. (7 marks)

ii) Determine the new height of water, If the tank is now open to the atmosphere. (3 marks)

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.