Of these objects, which follows an orbit with the greatest eccentricity? 10 points earth mercury the moon halley's comet 50 freaking points!

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

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.

In automobile steering wheel is shown what is the ideal mechanical advantage blank? if the ama is eight what is the efficiency of the steering wheel?