A crate is pulled to the right with a force of 71.3 N, to the left with a force of 110.3 N,
upward with a force of 564.8 N, and downward
with a force of 240.2 N.
What is the net external force in the x
direction?
Answer in units of N.

Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70°c. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)