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Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch

Apotter's wheel moves uniformly from rest to an angular speed of 0.20 rev/s in 32.0 s. (a) find its angular acceleration in radians per second per second. rad/s2 (b) would doubling the angular acceleration during the given period have doubled final angular speed?

Which statement best explains why the overall charge on an atom is zero?