A 645-kg elevator starts from rest and reaches its cruising speed of 1.28 m/s after 3.13 seconds. It moved 2.75 m during that time. (a) What average power (W) is delivered by the motor during the initial acceleration of the elevator during the first 3.13 seconds? (b) How much power (W) is delivered by the elevator motor while the elevator moves upward now at its cruising speed?

Choose a synonym for the underlined homonym (a word with two or more meanings). i did not expect the boat to rock so much. a. boulder c. astound b. sway d. shock

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.

In which of the following is positive work done by a person on a suitcase