Liquid ethanol (c2h5oh) is burned with air in a steady-flow, premixed burner. the fuel flow rate is 1.65 gallons per hour (264.2 gallons = 1 m) and the equivalence ratio is 0.53. the fuel and air enter the combustor at 298 k. determine: a. (1 pt) the heat release rate, in kw. b. (2 pts) the mass flow rate of air, in kg/s. c. (1 pt) the mass fraction of oxygen in the products. d. (3 pts) the adiabatic flame temperature, using 1600 and 2400 k as your guesses.

An airplane flies eastward and always accelerates at a constant rate. at one position along its path it has a velocity of 34.3 m/s, it then flies a further distance of 40100 m and afterwards its velocity is 47.5 m/s. find the airplane\'s acceleration and calculate how much time elapses while the airplane covers those 40100 m.

What type of electromagnetic wave is used in security pens? a. x-rays c. microwaves b. visible light d. ultraviolet radiation select the best answer from the choices provided

(science)study the following ocean currents map. an ocean currents map is shown. on the map the locations for san diego, california and savannah, georgia are marked. there is a looping current from the north past san diego and a looping current from the south near savannah which statement is most likely correct about the average temperatures in san diego, california as compared to savannah, georgia? it is higher in savannah because of the cool ocean currents from the south. it is higher in savannah because of the warm ocean currents from the north. it is lower in san diego because of the warm ocean currents from the south. it is lower in san diego because of the cool ocean currents from the north.