1) A softball pitcher has the ability to throw a softball at a high speed to the catcher at home plate. The distance from the pitcher to the catcher is 40 feet. The ball travels the distance in 0.5 seconds. Calculate the speed of
the ball.

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

Isso9