As a ball is released inside Earth's gravitational field and begins to fall to the ground Select one:

A) there is no gravitational potential energy between them

B) the amount of gravitational potential energy stays the same.

C) the amount of gravitational potential energy increases.

D) the amount of gravitational potential energy decreases.

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.

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

Positrons are spontaneously emitted from the nuclei of