Acondenser of a heat pump uses r-134a as a working fluid. the fluid enters the condenser (after leaving the compressor) at a pressure of 120 psia and 140 f and a volume flow rate of 1.5 ft3/s.
the condenser cools the r-134a to a temperature of 90.49 f and a quality of 50% at the same pressure as it entered.
based on steady flow through the condenser what is the heat flow rejected to the outside air in btu/s to three significant digits?
answer with explanation:
when dealing with heavy loads, one needs to take certain precautions in order to avoid or prevent from injuries.
for instance, one should avoid lifting above the shoulder level which can end up pulling your muscle.
also, you can either break the load in parts if possible or get some for lifting heavy bulks.
moreover, one should try to lift with the legs while keeping the back straight and not twisting it.
answer & explanation:
"the force on a cutting tool are 2600n vertically downward" sounds a little unusual, since most of the time, the tool is above the object to be cut in such a way that the force acting "on the tool" is upwards. we will accept the statement as it is (downwards).
since the two forces are acting at right angles to each other, the resultant can be found using pythagoras theorem, namely
resultant = sqrt(2600^2+2100^2) = 3342 n (approx.)
the angle can be found using the arctangent function, or
angle = arctangent(2600/2100) = 51.07 degrees below the horizontal, since the 2600 n force is acting downwards.
d is the answer
the drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion.