When the steel ball drops on the constant velocity cart, it follows a path in the frame of reference fixed to the , but a straight line in the frame of reference of the constant velocity cart. Without a fixed reference frame, one cannot tell whether or not you are in a frame of reference. All frames of reference moving at constant velocity with respect to one another are__equivilent__.

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.