Apoliceman's whistle has a high pitch low amplitude low pitch

1. in terms of fuel economy rank the following hybrid and electric vehicles, and justify application specific to each hybrid technology stop/start | mild hybrid | full hybrid | plug-in hybrid | full electric a. rank based on fuel economy b. justify your application specific for each technology

What are similarities and differences of reflection, refraction, diffraction and absorption?

Positrons are spontaneously emitted from the nuclei of