The particles are released from rest simultaneously. They repel one another, and start moving apart. After a long time, when the particles are far apart, essentially all of the initial electric potential energy has been converted into kinetic energy, some taken away by particle 1 and the rest by particle 2. What percent of the initial energy does particle 2 end up carrying away

Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s