A fully loaded, slow-moving freight elevator has a cab with a total mass of 1400 kg, which is required to travel upward 44 m in 4.1 min, starting and ending at rest. The elevator's counterweight has a mass of only 850 kg, so the elevator motor must help pull the cab upward. What average power is required of the force the motor exerts on the cab via the cable

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.

What is the magnitude of the resultant vector round your answer to the nearest tenth

Given the position vector of the particle r(t)=(t+1)i+(t^2−1)j+2t k, find the particle's velocity and acceleration vectors at t=1