How much thermal energy must be released from 25 grams of water at 40 degrees C to turn the water into ice at 0 degrees C? The latent heat of fusion of water is 80 calories/gram and the specific heat of water is 1 calorie/(gram * degree C).

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.