The graph below shows time versus temperature for water in a tank after the heater has been switched on. The heater is switched off at point A on the graph. a. The mass of water in the tank is 60 kg. What is the amount of heat supplied by the heating coil in the first
30 minutes?
b. If the mass was 50 kg, what would be the power of the heater assuming there is no loss of heat?
c. What is the rate at which the temperature of the water in the tank increases over the first 30 minutes?

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.

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?

Aspacecraft that renters the earth’s atmosphere drastically slows down. the amount of kinetic energy the spacecraft has as it reenters the earths atmosphere