Use coulomb's law, f=kq1q2/d2, to calculate the electric force on an electron (q=−1.6×10−19c) exerted by a single proton if the particles are 0.53×10−10m apart. the constant k in coulomb's law is 9.0×109 n⋅m2/c2. (the unit abbreviated n is the newton, the si unit of force.) express your answer using two significant figures.

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.

Three charge are arranged as shown in the diagram. the magnitude of the net electrical force acting on the +6 uc charge, rounded to the tenths place, is .

From 0 to 5 seconds john pushed a box 5 meters. from 5 to 10 seconds, paul pushed the same box another 5 meters. who did more work? a. john b. paul c. john and paul did the same amount of work.