A tennis ball with mass m travelling west, hits a wall with a velocity of v. It bounces back with a velocity 1 ,63 v an easterly direction. The change in momentum of the tennis ball will be?

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

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.

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery