Answer soon! dan does 188.0 j of work raking leaves. if the rake does 128.0 j of work, what is the efficiency of the rake? a. 68.1 percent b. 147.0 percent c. 60.0 percent d. 316.0 percenta force of 29.0 n is used to lift a baby through a distance of 0.500 m. how much work is done on the baby? a. 29.5 j b. 58.0 j c. 14.5 j d. 28.5 j

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