A lap
The state's prosecuting attorney in each judicial circuit is called the district attorney. The district attorney represents the government when it comes to criminal offenses.
67,000 miles an hour that's 30km a second.
A circuit with two or more pathways is called a parallel circuit. In a parallel circuit, the components are connected in such a way that each component has its own separate pathway for electric current to flow. This allows the components to operate independently of each other.
An electric circuit connected so that current passes through each circuit element in turn without branching.
Round Worms.
If your racing and betting on each others horses its called Racing for Pinks!
Circuit
Yes, when swimmers compete against each other they're called races.
An orbit.
The Referee (sometimes called "center ref") gives the commands to start and end each round of Taekwondo sparring when the time keeper indicates the round time has expired.
The current that flows from and back to the power supply in a parallel circuit is called the total current. It splits into different branches based on the resistance of each branch but remains constant throughout the circuit.
Parallel circuit