Agirl runs north with a velocity of 10m/s for 1 minute and then turns west and runs with the same velocity for 2 minutes. what total distance did she run? what is the magnitude of the person's displacement vector?

1. what is the si unit of emf? 2.a complete series circuit consists of a 12.0 v battery, a 4.70 ω resistor, and a switch in the closed position. the internal resistance of the battery is 0.30 ω. what does an ideal voltmeter read when placed across the resistor?