A circular coil has a radius of r= m and is made by winding wire around and around with
N= turns. The coil has a resistance of R= 
and is placed in a magnetic field
that is perpendicular to the plane of the coil. The magnetic field varies with time according to this function:
B(t)=0.01t+0.04t2. Find the induced EMF in the coil when t= seconds