Does a light sensor detect an object, or does it detect the light coming from an object

What is hidden during a lunar eclipse? isn't the moon hidden?

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.

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.