When a force F stretches a rope of mass per unit length p, the velocity of a wave in the rope is given by V = You have two ropes of the same length. The mass of the second rope is three times the mass of the first rope. The velocity of a wave in the second rope is the velocity of a wave in the first rope.circuit? If I short out a battery so I draw a current of 7 A for 15 s, how many Coulombs of charge move through the 105 C OFC OIs C 7/15 C 35 C