What problems can you imagine arising from a nation of mixed nationalities and faiths? provide real world examples, if you can. plz try, any answers will do.

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.

When using the scientist method, which step comes last?

How did the germans define who was jewish?