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

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m

The inside surface of a cylindrical-shaped cave of inner diameter 1.0 m is continuously covered with a very thin layer of water. the cave is very long and it is open on both ends. the water on the cave surface is at a constant temperature of 15.5 °c. the cave is constantly exposed to wind such that 15.5 °c air flows through the cave at 4.5 m/s. the kinematic viscosity of the air is 14.66 x 10-6 m2/s and the molecular diffusion coefficient of water vapor in the air is 0.239 x 10-4 m2/s. because the cave diameter is so large, the flow of wind down the length of the cave, in the x direction, can be treated like it is external flow and the cave surface can be approximated as flat where appropriate. calculate the x value, in a) the transition to turbulent flow occurs at rex meters, where the air flow transitions from laminar to turbulent along the inside surface of the cave b) calculate the x value, in meters, where the bulk steady state concentration of water vapor in the air flowing in the cave is 10% of the saturation concentration. assume the air at the surface of the water layer is 100% saturated with water vapor. assume the wind entering the cave contained no moisture before it entered the cave. take into account the transition from laminar to turbulent flow when solving part b

If anyonee has done the momentum lab practical in physics can you give me the answers i am s lostt rnn : (