Roger sees water balloons fall past his window. he notices that each balloon strikes the sidewalk 1.2s after passing his window. roger's room is on the fifth floor, 25m above the sidewalk.
how fast are the balloons traveling when they pass roger's window? assuming the balloons are being released from rest, from what floor are they being released? each floor of the dorm is 5.0 m high.

First, launch the video below. you will be asked to use your knowledge of physics to predict the outcome of an experiment. then, close the video window and answer the question at right. you can watch the video again at any point. part a as in the video, we apply a charge +q to the half-shell that carries the electroscope. this time, we also apply a charge –q to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? view available hint(s) as in the video, we apply a charge + to the half-shell that carries the electroscope. this time, we also apply a charge – to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? it deflects more than it did at the end of the video. it deflects the same amount as at end of the video. it does not deflect at all. it deflects less than it did at the end of the video. submit

Which of the following is not am example of a polymer? protein nylon kevlar concreta

Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.