3. a drill spins with a frequency of 1200 rpm (revolutions per minute). what is its
frequency in rps (revolutions per second)?

Frequency = 1200 rev/minute

Frequency = (1200 rev/minute) · (1 minute / 60 seconds)

Frequency = (1200 / 60) (rev - minute / minute - seconds)

Frequency = 20 rev/second

car a and b are moving in opposite directions

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volts times amps 6 x 0.5 3w