Students are using the experimental setup shown in the image in which the two ends of a string are attached to a car and to a hanger The students conduct three trials in which they place metal discs on the hanger to manipulate the force applied to the
car As a result, the car accelerates along the table while two probes collect motion data
On the fourth thal of this experiment, a student places some discs on the car by mistake in 1-2 sentences, explain how this
mistake will affect the graphs produced by the computer
(2 points)

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

When seismic waves hit a fault, the waves are reflected off the fault. seismograph can detect these reflected seismic waves. geologists then use these data to map the fault's length and depth