Answer:
charcoal is the correct answer
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The equivalent resistance of n resistors in series is given by:

In our circuit, we have three resistors of

each, therefore the equivalent resistance of the circuit is
Answer:
Kinematics is a <em>subfield of physics, developed in classical mechanics, that describes the motion of points, bodies (objects), and systems of bodies (groups of objects) without considering the forces that cause them to move.</em>
Explanation:
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Blazetoxic123
She can monitor her practice run times to see if they are decreasing.