A device that changes the size or direction of force used to do work is called aan)

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

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.

Argon, neon, and xenon are examples of