Two cars drive on a straight highway. at time t=0, car 1 passes mile marker 0 traveling due east with a speed of 20.0 m/s . at the same time, car 2 is 0.80 km east of mile marker 0 traveling at 26.0 m/s due west. car 1 is speeding up with an acceleration of magnitude 0.40 m/s^2 , and car 2 is slowing down with an acceleration of magnitude 0.80 m/s^2 . a.) write x-versus-t equations of motion for both cars, taking east as the positive direction.
b.) at what time do the cars pass next to one another?

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.

A5 foot by 5 foot box culvert is buried 6 feet beneath the surface of the ground. a crosssection of this very long culvert (into and out of the page) is illustrated below. assume that the soil in which the culvert is buried has the following properties: jt = 120 pcf, w = 12%, ko = 0.50, ka = 0.33, and kp = 3.00. calculate the total horizontal force per unit length of culvert (fh) felt on one of the vertical faces of the culvert.

In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?