4) A 60 Kg person (132 pounds) has a kinetic energy of 58800 Joules as they reach the ground after falling off a 100 m cliff. With what speed do they reach the ground? (use the
equation to figure out what information you need and what information you don't need)

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.

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?