A copper calorimeter weighing 40g contains 200g of water at 35°C. 20g of dry ice is added to the water and this reduces the temperature to 25°C after all the ice has melted. What value of the specific latent heat of fusion of ice is given by this experiment. (SHC of water = 4200J/KgK)
(SHC of copper = 400J/KgK).

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.