Can you please help me with both questions?

9) A train is moving directly south with a speed of 10 m/s. If the downward vertical component of (10pts) the Earth's magnetic field is 0.54 G (Gauss: 1 G = 10 4T), compute the magnitude of the emf induced in a rail car axle 1.2 m long. Which end of the axle is at a higher potential? Verdana V 10pt BIU TX E EMME V O WORDS POWERED BY TINY / 10) The current in a 0.080 Henry solenoid increases from 20.0 mA to 160.0 mA in 7.0 s. Find the (10pts) average EMF in the solenoid during that time interval. Verdana 10pt BIUAV IX 7