Here's what I think:
No, we don't want to discourage questions that can easily be answered by a quick search.
Easy questions get answered all the time on the SE network, there's really nothing wrong with them. I agree 100% with David's answer, and I'd like to add a little.
And here's why:
The point of the site is to bring in anyone who's searching for an answer to a question about physics. If we restrict ourselves to answers that can't easily be found, we are narrowing our scope a lot. Just because an answer is already on Google, it doesn't mean this site won't be able to top the previous answer and become the new "first result".
In fact, the whole point of a SE community is to get most of it's traffic from search engines eventually. And the questions most easy to find are usually the ones that most searched, so why would we ban them? They are as legit as any other question, and nobody is forced to answer them. Users who think it's a waste of their time can just ignore it. Not to mention, if the question really is easy, it will be a chance for less experienced users to contribute as well, which can only help the site grow. The site won't hold itself on phd's alone, it needs both. We should down vote questions that are not real questions, are not about physics, or are terribly phrased; but we should not down vote or close questions that are easy.
I agree that the answer is not completely satisfactory. We should prefer answers with at least some content, instead of just links. Which is why I was waiting to accept an answer that brought some content with it. But that's not a reason to close the question.
EDIT: All that said, I'll agree that manually filling up the site with hundreds of questions that any undergrad can easily find an answer for in under 5 minutes is bad. It will probably act as noise and cover up the good stuff in the site. Also, it will probably push away more experienced users from joining.
In the end, we need this questions, but we need the hard ones as well. It's a fine balance that will take some discussion.