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in the casting of steel under certain mold conditions the mold constant in chvorinovs rule is known to be 40 mincm2
a temperature measuring device with a time constant of 015 s outputs a voltage that is linearly proportional to
an inventor claims to have developed a power cycle operating between hot and cold reservoirs at 1175k and 295k
a 92 aluminium 8 copper alloy casting is made in a sand mold using a sand core that weighs 20 kg determine the buoyancy
which one of the four types of chip would be expected in a turning operation conducted at low cutting speed on a
a 264 kg copper part initially at 400 k is plunged into a tank containing 4 kg of liquid water initially at 300 k the
1 kg of a gas in a piston-cylinder assembly undergoes a carnot power cycle for which the isothermal expansion occurs at
consider a system consisting of liquid water initially at t1 318 k p1 35 bar undergoing a process to a final state at
consider a refrigerant 22 at 0oc that is going through a phase change from the saturated liquid to saturated vapor
using the appropriate table determine the change in specific entropy between the two specified states in btulbor show
using the appropriate table determine the indicated property in each case locate the state on sketches of the t-v and
a sheet of cold worked copper has a ductility of 15 if the sheet thickness is 34 mm what were the dimensions of the
in the system a b activity coefficients can be expressed by the one-parameter margules equation with a05 the vapor
a certain u-235 fueled pressurized water reactor is just critical suddenly the average coolant temperature falls from
ammonia enters a valve as saturated liquid at 9 bar and undergoes a throttling process to a pressure of 2 bar determine
a refrigeration unit operating on r-134a is used to maintain a freezer at -15degc the refrigeration unit operates at a
a mixture of 30 co2 60 co and 10 h2 by volume is placed in a container and maintained at 4680 r and 1 atm determine the
steam enters the condenser heat exchanger of a steam power plant at 20kpa and a quality of 95 with a mass flow rate of
a saturated mixture of water at 1100kpa is throttled in a throttling process to a temperature of 105 degrees c and a
the signboard truss is designed to support a horizontal wind load of 640 lb if the resultant of this load passes though
you are given a liquid and are asked to find its viscosity its density is known to be 097 gcm3 you place the fluid in
in order to double check your speedometer on your boat you decide to install a pitot tube on the bottom one tube
consider a refrigerant 22 at 0 c that is going through a phase change from the saturated liquid to saturated vapor
in thermodynamics path functions such as heat or work are dependent on path process point functions are not properties