An airplane is travelling at an airspeed of 500 km/h. In order to reach a destination that is 800 km to the north in 1.641 hr, the pilot must head the plane in a direction of 15° west of north. What is the magnitude and direction of the wind relative to the ground (in km/h)? Draw a clearly labeled velocity diagram as part of your solution.

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.