the Kuingda ka rollercoaster in New Jersey is the worlds tallest ride. As the passenger cars are launched from rest at the start they are accelerated uniformly to a speed of 57m/s ( 128mph) in just 3.5s. what is the acceleration experienced by passengers on this ride in m/s squared

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.