Give a description of of lower mantle

Why does the input force have to be greater than the force needed to lift the bale?

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 is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?