Acannon is mounted on a truck that moves forward at a speed of 5 m/s. the operator wants to launch a ball from a cannon so the ball goes as far as possible before hitting the level surface. the muzzle velocity of the cannon is 50 m/s. at what angle from the horizontal should the operator point the cannon?

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.