(15 pts) o move in a spiral orbit given by the equation r aθ2 a particle of mass m is observed t where a is a positive constant. a) is it possible to have such an orbit in central force ? . if so, determine the form of the force function, f(r). b) how the angle θ(t) varies with tirne. note: the differential equation of the orbit for a central force is 瓜(t )

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.

Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.

What is created when solids,liquids,an gases mix with one another