The potential energy of a body of mass m is given by U(x) = -mgx + 1/2kx^2. The corresponding force is​

 F = (mg - kx)  i ^

Explanation:

Force and potential are related

         F = - ( i ^ + \frac{dU}{dy} j ^ + \frac{dU}{dz} k ^)

in this exercise we are told that the potential is

         U = - m g x + ½ kx²

let's make the drive

         \frac{dU}{dx} = -mg + kx

         \frac{dU}{dy}= 0

          \frac{dU}{dz} = 0

we substitute

         F = (mg - kx)  i ^

hi i’m sorry to call us today so we will get back with y’all and we will have to do it haha omg was the day

probably not the "magnets"in the magnet, so to speak, are thought to be electrons orbiting in shells. vurrent loops two sides to the loop