A car on a roller coaster loaded with passengers has a mass of 2100 kg. At the lowest point of the track, the radius of curvature of the track is 125 m and the roller car has a speed of 17 m/s. What is the normal force acting on the roller coaster car at the lowest point on the track?

Aspecified volume of space contains an electric field for which the magnitude is given by e=e0cos(ωt). suppose that e0 = 20 v/m and ω = 1.0 × 107 s−1. part a what is the maximum displacement current through a 0.80 m2 cross-sectional area of this volume? express your answer with the appropriate units. idisp,max i d i s p , m a x = nothing nothing request answer part b how would this area have to be oriented relative to the electric field to get this maximum displacement current?