Fernando is an engineer at an amusement park who is experimenting with changed to the set up fir a magnetic roller coaster ride. In one ride, there are two identical roller coaster cards (red and yellow) that start on opposite sides of a large magnet located in the center of the station. He moves both cars, so each car ends up one space farther away from the large magnet. How did the potential energy of the two cars change? Did the potential energy of one car change more than the other? Why do you think so?

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.