1: A 10 kg box rests on a scale which is placed on the floor of an elevator. Find the apparent weight of the box if the elevator is (a) moving with constant velocity of 10 m/s (b) accelerating downward with 3 m/s? (c) accelerating upward with 5 m/s2. Ans: (a) 100 N (b) 70 N (c) 150 N.

Apassenger walks toward the rear of a moving train. describe her motion as seen from a reference point on the train. then describe it from a reference point on the ground

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.

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value