A three-point bending test was performed on an aluminum oxide specimen having a circular cross section of radius 5.9 mm; the specimen fractured at a load of 4470 N when the distance between support points was 40 mm. Another test is to be performed on a specimen of this same material, but one that has a square cross section of 13 mm in length on each edge. At what load would you expect this specimen to fracture if the support point separation is maintained at 40 mm? Ff = Enter your answer in accordance to the question statement N

Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?

An external consultant recommends that a plant installs a bank of capacitors for power factor correction. this will reduce the peak electrical demand charges by an average of 93 kw every month. the plant current pays $13 per kw in peak demand charges. the capacitor bank will include 223 kw of fixed capacitors, and 183 of variable capacitors. the fixed capacitors cost $59 per kw, and the variable capacitors will cost $65 per kw. the consultant charges 21% of the equipment costs to install the capacitors. because this project will reduce the demand for the electric utility, they are prepared to provide a one-time rebate of $42 per kw of reduced demand. what is the simple payback period for this project (in years)?

The process in which the system pressure remain constant is called a)-isobaric b)-isochoric c)-isolated d)-isothermal