How much voltage is required to run 0.42 a of current through a 150
resistor? use av = ir.
o a. 0.16 v
o b. 0.028 v
o c. 6.3 v
o d. 36 v

Arope has one end tied to a vertical support. you hold the other end so that the rope is horizontal. if you move the end of the rope back and forth with a frequency of 4 hz, the transverse wave you produce has a wavelength of 0.5 m. what is the speed of the wave in the rope?