Author Question: A 0.200-m wire is moved parallel to a 0.500-T magnetic field at a speed of 6.00 m/s. What emf is ... (Read 28 times)

jessicacav · **on:** Jul 28, 2018

A 0.200-m wire is moved parallel to a 0.500-T magnetic field at a speed of 6.00 m/s. What emf is induced across the ends of the wire?
a. 1.00 V
c. 2.25 V
b. 0.600 V
d. zero

Question 2

The oxygen molecule (O2) may be regarded as two masses connected by a spring. In vibrational motion, each oxygen atom alternately approaches, then moves away from the center of mass of the system. If each oxygen atom of mass m = 2.67 10-26 kg has a vibrational energy of 6.4 10-21 J and the effective spring constant is 50 N/m, then what is the amplitude of oscillation of each oxygen atom?
a. 3.2 10-11 m
c. 1.1 10-11 m
b. 1.6 10-11 m
d. 8.0 10-12 m