Mass a (2.0 kg) is moving with an initial velocity of 15 m/s in the +x-direction, and it collides with mass b (5.0 kg), initially at rest. after the collision, the two objects stick together and move as one. what is the change in kinetic energy of the system as a result of the collision?

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

Atomic nuclei of almost all elements consist of

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.