A characteristic of the open-loop system is that it does not use feedback to determine if its output has achieved the desired goal
of the input. This means that the system does not observe the output of the processes that it is controlling. Closed-loop systems
employ feedback and a reference of correctness. Deviations from the norm are detected and corrections made in order to
maintain a desired output.
What type of system does the diagram represent?
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Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage

Which car has the most kinetic energy? a. a car of mass 1000 kg with a speed of 3 m/s b. a car of mass 2000 kg with speed 7 m/s c. a car of mass 1000 kg with speed 7 m/s d. a car of mass 2000 kg with speed 3 m/s

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island