Is it possible to run Windows on Ubuntu PowerPC using QEMU?

I looked for several guides on the net but that wasn't clear.

I installed several GUI's for QEMU and KVM (like Aqemu and Qemulator and some others). So, the process of creating virtual machines must be quite easy.

I also understand that I can install a virtual version of any Ubuntu or Power PC Linux with QEMU, for testing purposes, for instance.

The question is: can I installa Windows virtual machine on a Power PC Ubuntu (or any other Linux, of course), even if Windows is not made for Power PC? Or: can I run Windows on a Power PC Ubuntu? Or yet: can I run windows applications (without virtualizing the whole system) on a Power PC Ubuntu using QEMU or KVM (like the way Wine does it)?

Thank you for your help.