In her garage a bicyclist hangs a box of bike parts from a long spring attached to the ceiling the spring stretches 0.80m with the box attached and has a spring constant of 150n/m what is the elastic potential energy stored in the spring

unlike poles attract

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement