Underground water is to be pumped by a 78 percent efficient 5-kw submerged pump to a pool whose free surface is 30 m above the underground water level. the diameter of the pipe is 7 cm on the intake side and 5 cm on the discharge side. determine (a) the maximum flow rate of water and (b) the pressure difference across the pump. assume the elevation difference between the pump inlet and the outlet and the effect of the kinetic energy correction factors to be negligible.

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.

Which of the following is the result of the nuclear weak force? the instability of large nuclei the repelling force between positively charged protons the structure of the atom certain types of nuclear decay

Which model displays the change in a gas when the temperature of the gaseous system decreases?