4. The chart on the right shows data for different students climbing up the same flight of stairs. Which student does the most work?
(A) A
(B) B
(C) C
(D) D

Identical marbles are released from the same height on each of the following four frictionless ramps . compare the speed of the marbles at the end of each ramp. explain your reasoning

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

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.