Leta stetter hollingworth conducted pioneering work on a. identity development in ethnic minorities b. cognitive processes in animals and humans c. racism and its effects on child development d. adolescent development and gifted children

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Asystematic approach to problem solving is called a (an)

The air in an automobile tire with a volume of 2.60 ft3 is at 70°f and 21 psig. determine the amount of air that must be added to raise the pressure to the recommended value of 30 psig. assume the atmospheric pressure to be 14.6 psia and the temperature and the volume to remain constant. the gas constant of air is ru = 53.34ft⋅lbflbm⋅r(1 psia144 lbf/ft2) = 0.3704 psia⋅ft3lbm⋅r the amount of air that must be added to raise the pressure is lbm