A man drops a penny (V = 0) off the top of the Golden Gate Bridge, how fast will the penny be moving when it hits the ground? The Golden Gate Bridge is 275 meters tall.

Multiply the 3 dimensions, assuming it is a rectangular cuboid, to get the volume in cm³ divide mass by volume to get density in g/cm³

Answer:   [a]:   "slate" .

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

All i gotta say is ? k12 or usa test prep? and im not going to answer because you probably already finished.