Aboiler in a steam power plant has an efficiency of 30% by using fuel with calorific value of 38 mj/kg and produces 320 kg/hr of steam at 800 kpa and 800°c, respectively. this steam power plant consists of two turbines i. e. high pressure and low pressure turbines. the steam flow through the high pressure turbine from the boiler and leave at 100 kpa before it is reheated to 2500°c. after that, the steam enters the low pressure turbine until its pressure dropped to 4 kpa. the steam is cooled in a condenser by water from cooling tower whose specific heat is 4.18 kj/kg. k and inlet and outlet temperature of 25 c and 48 c, respectively if the work done by the feed pump is negligible and the turbine efficiency assumed to be 100%, determine: 1)-net power output of this steam power plant in (kwh), 2)-mass flow rate of fuel into the boiler (in kg/s) 3)-the mass flow of water in condensor (in kg/s) 4)-the thermal efficiency of the cycle in percentage

Answer as quick as ! kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energyb. motion energyc. sound energyd. thermal energy

Search coils and credit cards. one practical way to measure magnetic field strength uses a small, closely wound coil called a search coil. the coil is initially held with its plane perpendicular to a magnetic field. the coil is then either quickly rotated a quarter-turn about a diameter or quickly pulled out of the field. (a) derive the equation relating the total charge q that flows through a search coil to the magnetic-field magnitude b. the search coil has n turns, each with area a, and the flux through the coil is decreased from its initial maximum value to zero in a time ∆t. the resistance of the coil is r, and the total charge is q = i∆t, where i is the average current induced by the change in flux. (b) in a credit card reader, the magnetic strip on the back of a credit card is rapidly “swiped” past a coil within the reader. explain, using the same ideas that underlie the operation of a search coil, how the reader can decode the information stored in the pattern of magnetization on the strip. (c) is it necessary that the credit card be “swiped” through the reader at exactly the right speed? why or why not?

Which best describes what forms in nuclear fission? a. two smaller, more stable nucleib. two larger, less stable nucleic. one smaller, less stable nucleusd. one larger, more stable nucleus