Hey, this isn't a hw question but is more for help with a project. For our D.E. class we decided to model a building while it is being impacted by an earthquake. We are going to make up a building to use. Anyway, we are having trouble relating the earthquake to the building. We know that it has something to do with the resonate frequency of the building. Basically, we just need an equation and a solution (it has to be an ode). We are allowed to exclude variables as long as we explain why. Any suggestions? Thank you!!!!!!