Electrical wire with a diameter of 0.50cm is wound on a spool with a radius of 30cm and a height of 24cm. a)Through how many radians must the spool

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Electrical wire with a diameter of 0.50cm is wound on a spool with a radius of 30cm and a height of 24cm. a)Through how many radians must the spool be turned to wrap one even layer of wire? b) what is the length of this wire?

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