If stephen has 1 pound and sells 6oz and and 4 grams. how much does stephen have left before the cops take it all?

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.

Diamond will scratch quartz. true or false

Ways that industry and agriculture use physical properties to separate substances