A toroid of rectangular cross-section has height h = 0.011 m, inner radius r 1 = 0.021 m and outer radius r 2 = 0.05 m. If it has N = 196 loops, calculate the total magnetic energy in the toroid if the current is i = 4.25 A. This may be done by finding the inductance, or by integrating the magnetic energy density.

Aparticle initially located at the origin has an acceleration of = 2.00ĵ m/s2 and an initial velocity of i = 8.00î m/s. find (a) the vector position of the particle at any time t (where t is measured in seconds), (b) the velocity of the particle at any time t, (c) the position of the particle at t = 7.00 s, and (d) the speed of the particle at t = 7.00