A plane travels in a straight line from position A to position B in 69 min , moving at an average speed of 420 km/h . In a car traveling from A to B, the driver finds that the trip is 600 km long by the route he is forced to take, which goes straight south for a certain distance and then straight west for a longer distance. At what angle south of west does the plane travel?

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.

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?