Aswitch is connected in a series circuit. if the contacts on the switch are opened, the resistance of the circuit (including the switch) will ? .

Resistance become infinite

Explanation:

In series circuit when switch is closed then a current is flow which is equal to , here V is voltage and R is resistance

But when switch is open then no current is flow in the circuit

So , this is possible when resistance become infinite

So when switch is open then resistance of the circuit will become infinite

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.