Agreyhound's velocity changes from 10 meters per second to 15 meters per second in 0.5 second. what is the greyhound's average acceleration? 5 m/s2 10 m/s 10 m/s2 15 m/s

What is the length x of the side of the triangle below? (hint: use the cosine function)

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)

Ajoint produces movement when its angle decreases. which type of movement is it?