Passport, traveling, visa, USA..questions (theres a few lol)?

I wanted to go to Boston, MA, USA in summer. Just a few question...(im 18 in the the uk btw)
1) if this is my first passport, how long after i get it can i travel?
2) do i need to apply for a visa if im only stay 2 weeks to a month?
3) Do you have to show your bank details/ finacially ok
Do i have to apply for that visa in advance or is it issues at the airport?

1) I think you can use your passport when you get it as when they finish making your passport they register it as genuine and after that it's usable.
2) Yes I think you do have to apply for a Visa before going to America.
3) No I don't think you should be showing bank details at all as your financial details should always be kept privated to prevent any fraud from taking place.

Ask at the US Embassy in London, or a consular office near you.

1) You can travel to the USA the same day you receive your UK Passport.

2) You are probably eligible for the Visa Waiver Program (VWP) - see the link below

3) If you need a Visa, the application requirements are also at that same site.

4) No. If you need a Visa you can not get it at arrival in a US port. It must be already affixed to your passport.