The water turbine are fed by water falling from a 52-m height. Assuming that the efficiency of changing the potential to electrical energy is 92% , and 8% loss of the resulting power in transmission, what is the mass flow rate of water required to power a 200 W light bulb?

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.

The higher the astm grain size number, the finer the gran is. a)-true b)-false