A bicyclist steadily speeds up from rest to 12.0m/s during a 4.40s time interval. Determine all unknowns and answer
the following questions.
What is the magnitude of the bicyclist's acceleration?
2.73 m/s2
How far did the bicyclist travel during this time?
m/s

Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.