A metal worker wants to heat commercial bronze (a copper alloy) by using an air cannon pointed downward. If she wants to increase the temperature of the bronze by 1.5 o F and the cannon is 20 feet above the ground, what would be exit velocity from the cannon need to be (in ft/s)? Neglect air resistance. [V = 78.9 ft/s]

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.

Name two kinds of practical electric pumps.

Astronomers studying the planet of rhombus have detected sedimentary rock on its surface. one astronomer wonders if material in this sedimentary rock used to be in igneous rock deep in rhombus’s interior. can igneous rock become sedimentary rock? explain your answer.