Which of the following is NOT a vector quantity? displacement
speed
acceleration
force

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.

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat

In which of the following is positive work done by a person on a suitcase