A boat from A crosses a 200 m wide river at a constant speed of 4 m/s with respect to the water flowing at a uniform speed of 1 m/s. Destination B is 80 m upstream from H, a point directly opposites A. (a) In what direction must the boat be pointed to travel from A to B?
(b) How long will the boat take to cross the river?

An observer that stands still as the electron moves by him, will observe

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

Which of the following statements is true about women and minorities in early psychology? a. in the early 20th century, numerous graduate schools recruited women and minorities to study psychology. b. opportunities in higher education were limited for women and minorities in the early 20th century due to discrimination. c. despite some obstacles, there were numerous employment opportunities for women and minorities. d. women and minorities were often selected to do academic research in an effort to make the field more diverse.