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the refrigerant r-410a is contained in a piston-cylinder device as shown in the figure where the volume is 13 l when
titanium is stiffer than aluminum has a lower thermal expansion coefficient than aluminum and has a higher melting
a gas is contained in a piston of 5 m3 at 100 kpa then the gas is compressed till its volume is reduced to 25 m3 if
an air-conditioner using r-134a as the working as the working fluid maintains a space at a constant temperature of 23
outdoor air leaks into a building through cracks in the walls at the rate of 700 m3h this is infiltratation the outside
the professor takes a 3 liter empty can and fills it with saturated water vapor at 100 deg c 1 atm he seals the can and
a low pass butter worth filter has a corner frequency of 1 khz and a roll-off of 24 db per octave in the stop band if
the long bolt passes through the 4 in thick plate if the force in the bolt shank is 50 lb determine the average normal
as a game slide a matchbook across a table trying to make it stop at some predefined point on each attempt measure the
a pump is used to raise the pressure of water from 0 psig to 55 psia how much power in kw will be required to pump
the tasty morsels chocolate company tracks the amount of chocolate found in its chocolate bars the target is 26 grams
on a hot summer day a student turns his fan on when he leaves his dorm room in the morning the dorm is well insulated
an important application of micro fluidics is in the area of electro kinetic separations in which an electric field is
the cold cranking amperes cca of a conventional lead-acid automobile battery is the amount of current the battery can
the reynolds number for a particular micro channel flow is found to be re 2a if all channel dimensions length width
a line is represented by two end points -100 and 200 the coordinate system is rotated 90 degrees about the y axis and
a machine with a mass of 5000kg will be lifted by a steel rod with an ultimate tensile strength of 860mpa a factor of
calculate using the psychometric equations presented in class the humidity ratio enthalpy specific volume and dew point
consider an air-standard otto cycle starting at 9 psia 77 deg f with a compression ratio of 11 and a specific heat
it is desired to purchase a steel tank to store 20000 us gallons of liquid propane design pressure is 250 psig and
the hydraulic cylinder bd exerts on member abc a force p directed along line bd knowing that p must have a 750-n
a hot water heating system is used to distribute hot water at 70degc through heating pipes with an outside diameter of
water in the container is originally at a h3 ft if a block having a specific weight of 50 ibft3 is placed in the water