14). small sphere of positive charge Q is ~-"leaved on a horizontal surface without friction. A second sphere of positive charge q is released from rest and free to move it. What Is the best description of the movement of the second sphere after it is released? J Its acceleration is zero at the beginning. A/Its speed is maximum immediately after being released. B/When it moves further from Q, its acceleration continues to increase. C/When it moves further from Q, its speed continues to increase. D/When she moves further from Q, her speed will decrease. 15) In the construction of buildings in a seismic region, what relationship should be achieved? Between the natural oscillation frequency of the building and the typical frequencies of Earthquakes? A) The frequency of the building must be almost the same as the seismic frequencies but Slightly lower. B) O The frequency of the building must be very different from seismic frequencies. C) O The frequency of the building must be almost the same as the seismic frequencies but Slightly higher. D) O The frequency of the building must be exactly equal to the seismic frequencies