A passenger of mass m on a Ferris wheel moves in a vertical circle of radius R with constant speed v. Assuming that the seat remains upright during the motion, what is true about the force the seat exerts on the passenger at the top of the circle? A. The upward force is equal in magnitude to the passenger’s weight.
B. The upward force is greater in magnitude than the passenger’s weight.
C. The upward force is smaller in magnitude than the passenger’s weight.
D. The upward force is zero.

Asubject in a clinical research trial experiences a serious, unanticipated adverse drug experience. how should the investigator proceed, with respect to the irb, after the discovery of the adverse event occurrence? a. do not report the adverse drug experience to the irb since it is a common adverse experience.b. report the adverse drug experience to the irb only if there are several other occurrences.c. report the adverse drug experience as part of the continuing review report.d. report the adverse drug experience in a timely manner, in keeping with the irb's policies and procedures, using the forms or the mechanism provided by the irb.

What is a view of science and psychology that says the value of knowledge depends on its usefulness? a. pragmatism b. psychotherapy c. physiology

Which of the following examples illustrates static friction? a box sits stationary on a ramp. a ball rolling on the lawn eventually comes to rest. a car rounds a curve on a road. a fish swims upstream.