A wire loop of radius 17 cm and resistance 9.0 is located in a uniform magnetic field that changes in magnitude as given in the figure. The loop's plane is perpendicular to the magnetic field. What is the magnitude of the emf in volts induced in the loop during the time intervals (a) t = 0 to 2.0 s; (b) 2.0 s to 4.0 s; and (c) 4.0 s to t = 6.0 s?