What is the approximate rms voltage of a single-phase sine wave with a kVp of 80?

Which of the following defines licensing?

A) Permission granted by a government entity for an individual to perform an activity B) Recognition granted by a nongovernmental agency that attests that an individual has met the required levels of competency C) The process of listing, or of being named to a list D) An article with learning objectives and a multiple-choice test, which can be completed online or by mail

Which type of research involves studying the relationship between factors or variables to determine whether a strong, weak, or no relationship exists between the factors studied?

A) ?Correlational research B) ?Observational research C) ?Descriptive research D) ?Experimental research