a stone is thrown vertically upward with a speed of 24.0 . (a)how fast is it moving when it reaches a height of 13.0 ? (b)how long is required to reach
this height?

Plss anybody know how to do this? ? i need the answers from a through d

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.