A spool whose inner core has a radius of 1.00 cm and whose end caps have a radius of 1.50 cm has a string tightly wound around the inner core. The spool is free to roll without slipping on a horizontal surface
If the string unwinds horizontally from the top of the core with a constant speed of 29.0 cm/s, what is the speed of the spool? A) 17.4 cm/s
B) 25.0 cm/s
C) 37.5 cm/s
D) 50.0 cm/s
E) 75.0 cm/s
A
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Resistance and Resistivity: Which one of the following quantities is equivalent to 1 ??
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A) 1 in 100,000,000 B) 1 in 10,000 C) 1 in 1,000,000 D) 1 in 100,000,000,000
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