One end of a horizontal string is attached to a small-amplitude mechanical 60.0-Hz oscillator. The string's mass per unit length is 3.7 x 10 kg/m. The string passes over a pulley, a distance l = 1.50 m away, and weights are hung from this end. Assume the string at the oscillator is a node, which is nearly true. (Figure 1) Figure Oscillator -1.50 m- O E 1 of 1 Part A What mass m must be hung from this end of the string to produce one loop of a standing wave? Express your answer to two significant figures and include the appropriate units. m1 = Submit Part B m = Submit Part C What mass m must be hung from this end of the string to produce two loops of a standing wave? Express your answer to two significant figures and include the appropriate units. m5 = Value Submit Request Answer A Value Provide Feedback Request Answer What mass m must be hung from this end of the string to produce five loops of a standing wave? Express your answer to two significant figures and include the appropriate units. Value Units Request Answer MacBook Pro Units ? Units ? ?