Yes..
Yes. There are some Yosimity/Bugs Bunny cartoons sewn together by the plotline of Yosimity trying to get Bugs Bunny as his replacement in Hell. In one of the parts, Yosimity says, "I'll send...
Fictional cowboy characters are often given nicknames which include place names. Sam's nickname just happens to have the name "Yosemite" -- it was as good as any other place.
The easiest way would be to say "~tsumori desuka?" or, "do you plan to ~?"
Amerika ni iku tsumori desuka? "Do you plan to go to America?" (you don't need to add "you" in Japanese)
However, in...