9. Electron travelling though two horizontal plates In the diagram P1 and P2 are two parallel horizontal plates that are 8.4 mm apart in a vacuum and have a potential
difference of 109 volts maintained between them, the upper plate being positive. Also, there is a horizontal magnetic field
of 0.029 T as shown.
X
X
X
X
electron
X
Tule
xd
x x x
X
x
x x x
x
x
beam X
X
P2 x
X x x X
A horizontal beam of electrons is directed between the plates so that it is moving at right angles to the magnetic field as
shown.
Determine the magnitude of the force due to the electric field acting on each electron

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.