Asmall 0.280-kg object moves on a frictionless horizontal table in a circular path of radius 4.10 m. the angular speed is 3.08 rad/s. the object is attached to a string of negligible mass that passes through a small hole in the table at the center of the circle. someone under the table begins to pull the string downward to make the circle smaller. if the string will tolerate a tension of no more than 128 n, what is the radius of the smallest possible circle on which the object can move?

all you have to do it times  3.o8 and 128 to get your answer yw hope it helped :)

Ohm's law tells you that i = v/r where v is equivalent voltage and r is equivalent resistance of the circuit
since all circuits have the same voltage, your question is really asking which circuit has the lowest total resistance, since the lower the resistance, the higher the current
circuit a has a resistance of 5 ohms; circuit c is in series so has a resistance of 10 ohms; circuit b is in parallel and therefore has a resistance of 2.5 ohms (review your notes on adding resistances in parallel and series); therefore b has the highest current

Attach the free body diagram and i will you answer the question.! : d