Apositively charged insulating rod is brought close to an object that is suspended by a string. if the object is repelled away from the rod we can conclude: a) the object is positively charged b) the object is negatively charged c) the object is an insulator d) the object is a conductor e) none of the above two small charged objects repel each other with a force f when separated by a distance d. if the charge on each object is reduced to one-fourth of its original value and the distance between them is reduced to d/2 the force becomes: a) f/16 b) f/8 c) f/4 d) f/2 e) f

Use the information presented in the graph to answer the questions. which segments show acceleration? which segment indicates that the object is slowing down? what is the velocity of segment b? what is the acceleration of segment b?

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.

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )