By Gertrude Chavez-Dreyfuss NEW YORK (Reuters) -The dollar climbed to six-week peaks against a basket of currencies on Tuesday, as investors resumed buying the greenback after a brief respite, on continued expectations the Federal Reserve would be in no rush to cut interest rates given a still stable U.S. economy. The dollar index rose to a six-week high of 103.76, and was last at 103.62, up 0.2%. “Since the start of the year, the dollar has been recovering and correcting back on what would I say as excessive improvement in risk sentiment and expectations of lower rates at the end of last year…