Two resistanceless rails rest 36 cmcm apart on a 5.5 degree ramp. They are joined at the bottom by a 0.70 resistor. At the top a copper bar of mass 0.050 kg (ignore its resistance) is laid across the rails. The whole apparatus is immersed in a vertical 0.45 T field.

What is the terminal (steady) velocity of the bar as it slides frictionlessly down the rails?Express your answer using two significant figures.

v=? m/s