A runner runs 10 m from the origin toward the WEST to point A. He then runs from point A 20 m more toward the EAST to point B. He then runs from point B 30 m more toward the WEST to point C. The runner's total displacement from the origin to point C is:. a. 20 m toward the WEST
b. 50 m toward the WEST
c. 60 m toward the WEST
d. 10 m toward the WEST.

Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)

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.

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.