occurs when wave trains having the same wavelength come together in phase, meaning crest to crest and trough to trough producing waves of greater height.

What is the magnitude of the resultant vector round your answer to the nearest tenth

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic

The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.